H9MO-LM
Contents
1. 22 2772 7777772 77 7 7 7 7 U 77 7 7 7 7272 77 7 7 77 7 7 7 7 7 7 C 1 H H H HE H nino HIHIHIH H gt an eed ee LI LI C gesgaugHBalgggauogd H 1 FATT HE t E DIE djadgagnuHB8HlBdiHb 6 6 436 464 B Slot side Fig 4 10 The LMX Chassis 4 3 2 Connect Power 48VDC power supply is connected to the LMX through the PWR IN card There are 2 power sockets on the PWR IN card They can be connected to independent 48VDC power sources that back up each other On each power connector there is a plug inserted the socket Pull off the plug connect power wires to the plug according to Fig 4 11 Insert the prepared wire end into the hole on the left end of the plug tighten the screw to securely fix the wire to the plug After fixing all the wires push the plug into the socket 22 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Em mm ismi 12 a rp F2. Ethernet Processing 4X 2M HDB3 El Interface t FO 4 P S interface n T WY 4 R5485 gt Management AO T A a p Power AL 4 oven q input Order Convert ow gt Wire Fig 3 1 Functional Block Diagram The core of a LM unit is the SDH processing block implemented in a single FPGA Its functions include SDH mapping pointer processing multiplexing framing clock extraction alarm detections The Ethernet processing deals with the Ethernet interface functions such as rate negotiation CRC processing etc The El interface block converts between TTL level and HDB3 signal format FO interface converts STM 1 optical signal into electrical format for processing by the FPGA and vice versa Orderwire block allows maintenance telephone conversation to be established between two connected LM units or between the LM and MetroEdge Express User Manual V1 1 5 Beijing Huahuan Electronics Co Ltd Hua uan the LMX A handset is used for orderwire instead of a full functional telephone set As a CPE equipment management on LM is usuallv done through the management station connected to the LMX When used in a point to point link management is through the RS485 management port using TABS protocol The power conversion block converts input 48V DC or 220V AC power supply to internal voltages fo
3. 28 LINETWORK 1 0 teens se sees 28 5 1 H7ZGMSW INIRODUGTION 5 ee ebbe 28 3 2 G ANNELALEOCATION 22 a a 35 Table of Content 1 6 SPECIEICA TIONS 37 6 1 STANDARD 37 6 2 PEAT ORES tik 38 6 2 1 H9MO LMX Aggregation 38 0 2 2 JHOMOSBEM OPE 38 6 3 SIDE INTERESAR iii 38 OO SDH Fiber OPUCINE OCO 38 03 2 SDH 38 6 4 M te ELS 39 6 5 ETHERNET ta ti 39 6 6 MANAGEMENT INTERFACE a etie aede 39 6 7 o Ped otis tcx ee Go ER 40 6 8 LU 40 6 9 ENVIRONMENT v a tod uon Kai 40 nasce an E uua IAE 40 40 OPTIONS 41 7 1 OPTION CODES oy 2 AN DE 41 72 MODULE SELECTION E teca ba pe oa aca bee o vaa 4 Table of Content 2 Huahuan Beijing Huahuan Electronics Co Ltd 1 27 Introduction Thank you for selecting MetroE
4. PWR The power card converts 48VDC power supply to 5VDC internal voltage Each card can supply 100 watts which is enough for a full LMX system power consumption That 1s the LMX can be powered with a single power card But for higher operation reliability it 1s recommended to use two power cards in 1 1 redundancy Each power card has its own power switch H9MO LMX PWR LEDI gt L Power Switch Ud Fig 4 4 Power Card 4 2 3 Auxiliary I O Card AUX IO The AUX IO card holds external clock ports shelf alarm output pot and orderwire telephone jack The upper 3 BNC connectors are for external clocks 2 clock inputs denoted INA and INB and an output connector denoted OUT In the middle is the shelf alarm output connector The upper post is the prompt alarm pin and the lower post is the differed alarm pin When alarms present the respective alarm output pin is earthed otherwise it is floated The port at the bottom is the phone jack for orderwire telephone This telephone is also used as a hand held input device for LCD menu selection 14 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd H9MO LMX SIF ET 4 _ Jumper QUT Qm GK pe Jumper INA NB 5 gae Jumper INB ALARM Shelf Alarm Out OW Phone J
5. 2 EN 5 3 1 5 3 2 6 2 3 RARP N ML E il par ta a U 8 3 4 PHYSICAL 10 3 5 INSTALLATION AND OPERATION eate nos 10 Pub Cro 11 4 1 11 4 2 PUNCTIONAL C ARD 13 4 2 1 Power Connect 13 TOWE A WAR 14 423 CAUXSIQ 14 4 2 4 Tributary STM 1 FE OFE OPFE 15 4 2 5 Tributary STM 1 OV16 16 17 4 2 6 Tributary Sub STM 0 Card 050 8 2 2 0000 18 42 7 STM 1 Network Interface Card 155 0 155 19 4 3 INSTALLATION AND OPERATION 2 2000000 0 00 0 00000606 1 21 qo CIAO bos 21 4 2 a 22 40 COMHHEGUODUC a l 23 4 3 4 Network Management Connection eese 23 43 Opderwire Leleplonme sest 24 4 3 6 LCD Display and Menu Operation 24 dq oU SITE A TAR 27 C
6. H9MO LMX OLT dO E HI Ethernet Jack gt z Tx mum Fiber Optic Module Rx ALM LED1 e NIT a OFE LIU H9MO LMX OLT Ethernet Jack 1 FO Module F zi i FO Module ALM ALM 1 e e LED1 2 b OPFE LIU Fig 4 6 OFE and OPFE LIU Cards Table 4 3 LED s on OFE and OPFE LIU Cards ALM FO port alarm For single and protected FO 1 loss of optical signal ports ALM 2 Wink receive bit error Off normal operation 16 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Duplex mode indication On the RJ45 jack Y On full duplex mode Off half duplex mode Wink collision The RJ45 pin out is given in Table 4 4 The actual Ethernet bandwidth may be set through management software from full IOOMbit s down to IMbit s in I Mbit s steps Table 4 4 RJ45 Pin Out Pn 1 2 6 7 8 Sig TxD TxD RxD r Note The port is auto MDIX compliant it will automatically adapt to MDI MDI X interfaces That is either parallel or crossover cables can be used to connect to any
7. Huahuan Beijing Huahuan Electronics Co Ltd 7 Options 7 1 Option Codes Options are available for LM and cards on LMX Options are represented by option codes following a slash at the end of product model Default configuration is used if an option 15 not specified Option type be 48V DC LMX 48V only 4 24VDC DC CPE only Power supply ca 2 220 CPE only DC48 and AC220 not supported Fiber mee t Interface ___ 1 1 protection No protection L Longrach Shortreach 5 1550 wavelength 1310nm Example H9MO LM SL5E denotes a CPE unit with single fiber 1550nm transmission wavelength 50km reach DC48V 220 power supply 7 2 Optical Module Selection Option Single Dua Reach Wave length Note NM fiber km T R nm D lt 40 1310 1310 1 2 1 9 1550 1550 1310 1550 Paired in each link 1550 1310 1310 1550 Paired in each link 1550 1310 Description 1 All modules operate at 155 520 kbps line rate with SC connectors 2 120 and HIOMO 120B are the simplified versions of HOMO LM specifically for point to point links HI0MO 120 supports only 4xEl interfaces while the HIOMO 120B supports full speed 100Base T interface in addition to the 4 3 The loop length figures are conservative assuming 0 4dB km 1310 and MetroEdge Express User Manual V1 1 41 Beijing Huahuan Electro
8. 10 100Base T port 4 2 5 Tributary STM 1 Card OV16 OPVI6 tributary STM 1 card is similar to OFE OPFE cards but without the FE interface The backplane cross connect capacity is 16 VC 12 s while the OFE and OPFE cards support only 4 VC 12 s It 1s designed to connect to a LMFIT or a LM or other CPE s with STM 1 fiber optic interface without locally terminated Ethernet port The OV 16 is the standard tributary card while the 16 the 1 1 protection version Two LED s on the card are used to show the status of the FO ports similar to that on the OFE and OPFE cards as listed 1n Table 4 3 H9MO LMX OLT Fiber Optic Module c OVIG LIU MetroEdge Express User Manual V1 1 17 Beijing Huahuan Electronics Co Ltd Hua uan H9MO LMX OLT FO Module FO Module d OPV16 LIU Fig 4 7 OV16 and OPV16 LIU Cards 4 2 6 Tributary Sub STM 0 Card OSUBS The tributary Sub STM 0 card is similar to OV16 card differ in two main aspects the optical line rate is sub STM 0 instead of STM 1 and there are two independent fiber optic interfaces that can connect two separate remote CPE s This increases the number of CPE s a LMX can support from 16 to 32 but with lowered capacity for each CPE The CPE connected to OSUB8 must be HOMO LMSUB The backplane cross connect capacity is 16 VC 12 s 8 for each link Two LED s on the card are used to show the status of the FO ports similar to that on the OPFE ca
9. Fewer connections also help to reduce the fault probability increase quality of service levels Manual rearrangement of E1 connections on the DDF are replaced by mouse clicks and drags on the virtual DDF on the computer screen The standard STM 1 format on the access link means that the optical signal can be monitored or analyzed with off the shelf SDH testers In contrast PDH optical interface is not standardized and no testers other than power meter can be used for trouble shooting a PDH fiber optic link The two NIU cards can be arranged to make two connections to the core network providing sub network connection protection for selected channels as shown in Fig 2 2 MetroEdge Express User Manual V1 1 3 Beijing Huahuan Electronics Co Ltd Hua uan SDH Core 7x Network Core Node Core SDH Node 7x HOMO LMX Fig 2 2 Up stream Protection In Fig 2 2 both LMX s are connected to the core SDH network with dual STM 1 links Traffic is protected bv traveling through different fiber optic links and different NIU cards The upper LMX connects to different core SDH nodes rather than to two STM 1 cards on the same node This is a better protection scheme as it not only protects against fiber cuts and card failures but also protects against core node failures The protection is based on VC 12 sub network connections It
10. Ltd Hua uan Fig 4 1 H9MO LMX card slots Each slot mav hold a card form a selection of different cards Table 4 1 lists available and planed cards The table will be extended in the future with more card tvpes to suit the OPFE16 1 1 optical protection version of OFEI6 T OSUB8 Dual port FO line card at sub STM 0 rate 8 VC 12 needs of our customers Single port STM 1 FO line card with Ethernet interface 4 VC 12 cross connect capacitv intended for linkinga LM OPFE 1 1 optical protection version of OFE a 16 Single port SIM I FO line card with Ethernet interface 16 VC 12 cross connect capacity intended OV16 Same as OFEIO but without Ethernet port all traffic v goes to cross connect LIU capacity for each FO channel may connect to 2 Table 4 1 LMX Card Descriptions for linking a LMFIT OPV16 1 1 optical protection version of 16 us a LMSUB s No 1 1 protection option AXE AxEI interface card mm 8XE 8xEl interface card 7 2XV35 2xV35 interface card DS FE201 Dual port Ethernet interface card Ethernet bandwidth 1 8xVC 12 one port has higher priority over the other AXFE 4xFEOoEI interface card MERE DXCI6 16 El time slot cross connect card 155 O FO interface STM 1 network interface card with built in cross connect SEC clock network NIU management and orderwire sub blocks 155 E Same as 155 O except with electrical STM 1 interface Y Networ
11. Specifications 6 1 Standards H9MO LMX LM confirms to the standards listed in table6 1 Table 6 1 Related Standards NEN STM 1 Optical G 707 G 957 STM 1 Electrical G 707 G 703 MetroEdge Express User Manual V1 1 37 Beijing Huahuan Electronics Co Ltd Hua uan Data Ethernet IEEE 802 3 100 Timing G 823 SDH Network Topology G 783 G 803 G 805 G 958 Network Management G 744 G 784 G 831 Q 811 Q 812 M 3100 M 3000 G 841 G 842 6 2 Basic Features 6 2 1 H9MO LMX Aggregation Device TUPP and Cross connect embedded 382 382 TU 12 cross connetct capability NIU SDH interface supported STM 1 optical interface or electrical interface support 1 1 protection LIU 16 SDH tributaries one tributary supports up to 16 El s and line speed 100 Base TX 6 2 2 H9MO LM CPE Device SDH Mapping El 1 TU 12 1 1 1 1 1 2 TU 12 2 2 1 1 El 3 TU 12 3 3 1 1 1 4 TU 12 4 1 2 1 Ethernet Mapping TU 12 5 TU 12 63 2 2 1 3 7 3 E1 Interfaces ITU T 0 703 Bit rate 2048kbit s 50ppm HDB3 750 BNC or 1 0 2 3 6 3 SDH Interface 6 3 1 SDH Fiber Optic Interface Bit Rate 155520kbit s STM 1 G 957 framing G 707 Line Code Scrambled NRZ 6 3 2 SDH Coaxial Interface Bit Rate 155520kbit s 20ppm 38 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Line Code CMI 6 4 Timing LMX Line clock Internal oscillation
12. can either be applied to all the VC 12 traffic or to selected VC 12 channels give extra unprotected capacity NIU cards on a LMX can also work in ADM mode to form a SDH ring as shown in Fig 2 3 A ee El HOMO LM 100BaseT HOMO El SDH Ri ng HOMO LM EI 100BaseT 100BaseT IU HOMOPNUX 100BaseT 9 El HOMO LM 100BaseT 20000 Fig 2 3 Ring topology The H9MO LM can also be used in a point to point fashion like its PDH counterparts It can provide not only 4 El channels but also a full speed 100 Ethernet link between two end points as shownin Fig 2 4 Since the HOMO LM is a standard SDH box it can also be used to set up a point to point link across a SDH network in which a VC 4 1s allocated for this purpose This is another advantage over PDH units 4 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co HOMO LM H9MO LM 100BaseT El 100BaseT HOMO LM H9M0 LM 100BaseT H9MO LM nooo Spi Network HOMO LM El 100BaseT FEDES El 100BaseT Fig 2 4 Point to point links 3 LJ HOMO LM This chapter describes the basic CPE model the HOMO LM The more flexible H9MO LMFIT is described in a separate manual 3 1 Function Blocks The internal block diagram of the LM is shown in Fig 3 1 10 100
13. each card may connect to 2 LMSUB where the line rate is sub STM 0 The chassis is designed Dual Front concept that 15 either side can be used as the front panel If you prefer front connections the card insertion side can be made front In this way all the cables are accessed in the front and LED s on each card provide operation status indication But if you prefer rear cable access then the back plane side with a big plate can be made front In order to provide operation status indication a LCD display screen is provided on this side The orderwire telephone keyboard can be used as the hand held terminal for command input 2 Typical Application Fig 2 1 depicts a typical application scenario of the MetroEdge Express In the diagram each HOMO LMX at the central office is connected to a set of HOMO LMs at the remote sites providing El and FE interfaces to the customers 2 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Ges gt 10 1 00Base Tx Business Packet Network gt AXEI Center El CE x 10 100Base Tx 4 H9MO LMX H9MO LMX Ethernet Other SDH equipment Ethernet a mm Other CPE with STM 1 interface Fig 2 1 MetroEdge Express used in star topology Since the fiber optic interface of the LMX LIU is SDH it can connect to any third part
14. hardware parameters such as the node address etc It can also be used to check operational status or issue simple commands The command input is not case sensitive Console access is password protected Default username is admin and default password is hhpostern The user can change the user name and password If no key stroke 1s performed in 3 minutes the system will automatically log off Table 4 8 Console Port Pin Definition The RJ45 is used to connect to a management workstation running network management software such as the H7GMSW It is a MDI 10 port and can be MetroEdge Express User Manual V1 1 23 Beijing Huahuan Electronics Co Ltd Hua uan connected to the LAN using standard Ethernet cable like anv other computer 4 3 5 Orderwire Telephone The RJ11 jack labeled PHONE on the AUX IO card is orderwire telephone socket It may connect any standard telephone in mode The orderwire telephone is used to establish a service call between the LMX and LM s connected to its LIU s Initiating a call at the LMX side is achieved by dialing a number representing the intended LM The call number starts with an asterisk key followed by the 2 digit number from 01 to 16 corresponding to the LIU slot positions on the LMX as shown in Fig 4 1 For example to call the LM connected to LIU3 one should dial 03 At a LM one can only call the LMX but not other LM s Therefore initiating a call at
15. jumper at the lower right corner denoted CNM13 is used to select output system clock mode The meanings of the LED s are given in Table 4 5 and the jumper settings are explained in Table 4 6 MetroEdge Express User Manual V1 1 19 Beijing Huahuan Electronics Co Ltd gt lt FI 24 CONSOLE 1 FDX Xi gt Hua iuan H9MO LMX SV LEDI a LED2 7 ad ILED4 75Q 0UT Oi Jumper 5 STM 1 Electrical 759 099 IN T jumper CNM6 STM 1 Optical 5 Management Port Do not change position of any other jumpers Console Port 321 Jumper CNM13 CNMIS Fig 4 9 STM 1 NIU Card Table 4 5 STM 1 NIU Card LED Description Labe olor Description Note Label Description Note Master slave indicator On represents the master when 20 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd AW two cards are installed in a 1 1 redundant operation fo j Operational indicator Winks during normal operation Ld ALMD EX Deferred alarm Alarm ALMP Prompt alarm Loss of signal indicator trigger Wink Prompt alarm On Lo
16. the LM side is in hot line fashion by pushing down the TALK button on the front panel The button is also used to receive a call to indicate the off hook condition 4 3 6 LCD Display and Menu Operation The telephone set at the LMX has another function that 15 act as handheld terminal to select menu items on the LCD screen on the side A of a LMX chassis as shown in Fig 4 10 A Double push on the asterisk key enters menu operation mode In menu mode keys 2 4 6 8 are used as cursor movement keys and key 5 act as enter key The key definition is shown in Fig 4 12 Hang up the phone leaves the menu mode Cursor Up Enter 1 Cursor Cursor Right Menu Up eas Menu Down e e 7 Double Push for Menu o Fig 4 12 Menu Key Definition Cursor Down 24 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd ib Logo Di Command Menu Configuration Addresses larm Mask Huahuan Fig 4 13 Menu Expansion Diagram 4 3 6 1 Alarm Menu Alarm Menu When no alarms present the LCD screen displays the Huahuan logo If alarm conditions arise the display changes to alarm indication showing all installed cards with blinking ones representing cards with alarms as shown in Fig 4 14 Ha
17. 4 dip switches on the right of the front panel They are used to control the operation mode of the LM Table 3 3 explains their functions MetroEdge Express User Manual V1 1 7 Huahuan Beijing Huahuan Electronics Co Ltd Table 3 3 The dip switches Downward flip will issue the local loop back 1 LOPL command making all 4 E1 ports on the local unit performing Rx to Tx loop back Upward flip cancels the local loop back Downward flip will issue the remote loop back 2 LOPR command making all 4 E1 ports on the remote unit performing Tx to Rx loop back Upward flip cancels the remote loop back Clock mode selection Upper position selects internal oscillator and down position selects line clock mode MASK Downward flip masks out all current E1 alarms Note a Loop back commands can also be issued through management software The last command takes effect b When connected with LMX the standard clock mode for LM is line clock 1 the LM 15 synchronized to the incoming STM 1 clock But when paired in a point to point link at least one of the LM should be set to internal clock mode c The LOPL and LOPR are indicated in Fig 3 3 Tx El Remote 9 Local El Unit ULT nep o qe Unit Cp EL LOPR Fig 3 3 Local and remote loop backs 3 3 Rear Panel Fig 3 4 shows the rear panel of a LM unit 220V 48V Power Swit
18. Count Error code count B1 LSREI fe 2 ANPJC J0 Clear Close 34 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd _ x JO 4i UnitInfo Trap Alarm Clock ErrCount Clock alarm Line Fault C 1055 Local Line Fault C Loss Fault Clock status Internal ExLA Localline Switching MB Line Keeping Ext B Local Line MB Line Topmost Topmost Topmost High High High High C Medium C Medium C Medium Medium C Low C Low C Low C Low NJA Clock mode 2Mbit 2MHz Clock selected Internal Recovered Clock Set C Close Fig 5 6 NIU Monitor Window 5 2 Channel Allocation Association or allocation of TU 12 s among the upstream STM 1 and LIU s achieved by setting the cross connect matrix In PDH days such association is done manually on DDF by arranging El cables Therefore the channel allocation command window 15 also called the virtual DDF On network area window select pull down menu Network Channel Allocation the mouse cursor changes shape to i Move the cursor to a line representing a link of the fiber optic network you want to allocate channels all links belong to the same sub network c
19. External clock input Two 2048kbit s or 2048 kHz clock 750 External clock output One 204 8kbit s or 2048 kHz clock 750 LM Line clock or internal oscillation 6 5 Ethernet 10 100Base Tx Ethernet Interface IEEE 802 3 10M 100M Auto Negotiation Half Full Duplex Auto Negotiation HP auto MDIX 802 1Q MAC up to 1536 byte MAC packet supported MAC Address Table 64K Byte Packet Buffer Size Bandwidth 1 100 Mbit s n IMbit s increment LMX 16 100Base TxEthernet Interface LM One 100 Interface 6 6 Management Interface LMX Q Interface Ethernet Interface RJ45 SNMP protocol IOBase T Ethernet MDI F Interface CONSOLE port Standard RS232 Connector DB9F MetroEdge Express User Manual V1 1 39 6 7 6 8 6 9 Beijing Huahuan Electronics Co Ltd Hua uan Pin Definition 2 3 Tx 5 GND Port Setting 9600 8 N 1 LM RS485 Interface Default Band Rate 2400 1200 1800 2400 4800 9600 19200 38400 selectable TABS protocol Port Setting 8 1 Odd parity Orderwire Telephone LMX connector LM 4P4C handset Power Voltage 48 38 62 220V 176V 260V LM only Power Consumption LMX 100W full system LM 8W Environment Temperature 5 45 C Humidity lt 90 non condensing 6 10 Dimensions LMX mm 436 310 X 250 LM mm 440 x 44 x 138 6 11 Weight LMX kg 13 LM kg 2 40 MetroEdge Express User Manual V1 1
20. MetroEdge Express HIMO LMX LM SDH Fiber Optic Access Platform User Manual Beijing Huhuan Electronics Co Ltd 2005 7 Disclaimer The information contained in this document is subject to change without notice and does not represent a commitment on part of Beijing Huahuan Electronics Co Ltd Huahuan The information in this document is believed to be accurate and reliable however Huahuan assumes no responsibility or liability for any errors or inaccuracies that may appear in the document Copyright 2005 Beijing Huahuan Electronics Co Ltd rights reserved No part of this publication may be reproduced or distributed in any form or by any means without prior written permission of Huahuan Product Model HOMO LMX H9MO LM Product Name MetroEdge Express Manual Version 1 1 Last Update 2005 7 BEIJING HUAHUAN ELECTRONICS Co LTD Address No 26 Shangdi 6 Street Haidian District Beijing 100085 P R China Tel 8610 62981998 8610 62988820 8610 62960985 Fax 8610 82899800 Web Bhttp www huahuan com http www huahuan com cn E mail support huahuan com support huahuan com cn 1 2 3 4 5 TABLE OF CONTENTS INTRODUCTION 25522255545 1 1 1 CPE EOUIPMEN coa 1 1 2 225 utes 1 59
21. ack E OI X V Fig 4 5 Auxiliary Card Inside the card there are 3 jumpers for setting the clock connector grounding Table 4 2 describes the jumper functions Sometimes when the external clock source and the LMX are not well earthed change of grounding settings may be required The best result may need to be found experimentally Table 4 2 AUX IO Card Jumper Settings OUT Output clock coaxial connector outer conductor grounding setting Grounding default lower Floating upper Grounding lower Floating default upper Grounding lower Floating default upper 4 2 4 Tributary STM 1 FE Card OFE OPFE The tributary STM 1 FE card is designed to connect to a LM unit or other CPE s with STM 1 fiber optic port The Ethernet traffic from the remote LM is terminated at the ETH port on the card while the VC 12 s bearing EI traffic within the STM 1 stream are sent to the NIU cards through backplane The Ethernet signal is also routed to the ENIU slots on the backplane for future connection to the embedded Gigabit Ethernet switch board The OFE is the standard tributary card while the OPFE the 1 1 protection version few LED s on the card are used to show the status of the FO ports and the Ethernet port as listed Table 4 3 MetroEdge Express User Manual V1 1 5 Beijing Huahuan Electronics Co Ltd Hua uan
22. ch amp JDODV Socket Management Port Ethernet RS485 DI e L 750 1 75Q OUT 75 Q IN 75 Q OUT 75 Q IN 75Q OUT 750 IN 75 Q OUT ERES 4 Link FDX J LL Poete 48V Input Fig 3 4 LM Rear Panel 8 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd El Port port 1 to port 4 are aligned left to right Default ports use 75 BNC coaxial connectors IN and OUT denote input and output ports respectively Optionally 1200 version with RJ48 ports is also available Ethernet Port The RJ45 connector on the left of the rear panel is the Ethernet port There are 2 LED s on the RJ45 jack marked ETH L and ETH F They are link and full duplex indicators as described in Table 3 1 The pin out of the RJ45 port is given in Table 3 4 Table 3 4 RJ45 Pin Out Note The port is auto MDIX compliant it will automatically adapt to MDI MDI X interfaces That is either parallel or crossover cables can be used to connect to any 10 100Base T port Management Port The DB9 connector on the left corner is the RS485 management port It is used for monitoring of a point to point link It is redundant when the LM is connected to a LMX The pin definition of the RS485 port is given in Table 3 5 Table 3 5 Pin definition of RS485 management prot li Note Tx and Rx are relative to the LM Unspecified pins should be left open Power Inpu
23. dge Express the SDH based fiber optic multi service access platform The MetroEdge Express is built on SDH MSPP technology It is aimed at providing both TDM based traditional telecom services and ever growing Ethernet based data services There are two types of equipment in the MetroEdge Express family the CPE end equipment hereafter referred to as LM LMSUB and LMFIT and the aggregation equipment at the central office hereafter LMX 1 1 CPE Equipment There are three types of CPE equipment MetroEdge Express The basic model 15 H9MO LM and a more flexible version is HOMO LMFIT The LM is designed for point to point applications while the LMFIT can also operate in ADM mode for more complicated topologies such as rings and chains Both LM and LMFIT operate at STM 1 SDH line rate A lower line rate version 15 called LMSUB which operates at sub STM 0 Table 1 1 lists main features of each type of the CPE equipment Table 1 1 Difference between CPE models 4 1 TU 12 1 TU 12 4 FE TU 12 5 TU 12 63 non virtual concatenated 4 interface slots multi interface card selections include 4xElcard full speed FE card FE over NxVC 12 virtual connection N lt 8 nx64kbps V 35 card fiber optic interface card 4 1 TU 12 1 TU 12 4 sub STM 0 FO interface Other features common to all models Standard STM 1 FO interface except LMSUB FO interface options include 1 1 protection dual or single fiber transmission 1310 or 1550 wav
24. eive relationship When plugging in the connectors make sure the peg on the connector is aligned with the opening on the socket Push firmly all the way until click Do not drag the fiber when unplugging Keep fiber bending radius above 50mm Please keep aside the socket cap and always cover the socket with the cap to prevent dust whenever fiber is removed Select correct clock mode If the unit is to be connected to a LMX it should operate in line clock mode i e the CKSL dip switch on the right side of the front panel should be pressed down If the LM 15 to be connected to another LM select internal clock by placing the CKSL dip at the up position Switch on the power the system starts to boot up The LED s may twinkle randomly The boot up takes about one second and the system starts normal operation Check the alarm LED s If the equipment on the far end is alive the OLOS OLOSA and OLOSB in the case of 1 1 protection configuration and the ERR should all go off Check fiber connections or the received optic power if some of these LED s shines Since 10 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd the El s not connected yet the EI alarm LED s will be on Connect an El bit error tester to one of the ports press down the dip no error should be reported Lift up the LOPL dip press down the LOPR dip measure the bit error again to ensure that the link 1s error f
25. elengths different optical power budget Standard 19 inch 1 unit high box Half width option available for LM and LMSUB 48V DC or 220V AC power supply 1 2 Aggregate Equipment The multi slot aggregate equipment HOMO LMX can hold up to 16 tributary cards LIU s and up to 2 network interface cards NIU s Different LIU cards are available as listed in Table 4 1 By selecting appropriate LIU s the tributary slots can provide different interfaces to meet the application requirements The most common LIU is the OFE card which is an STM 1 fiber optic line card with FE port It is mainly used to connect to the CPE equipment HOMO LM Other LIU s include E1 interface card V 35 interface card MetroEdge Express User Manual V1 1 1 Beijing Huahuan Electronics Co Ltd Hua uan FE over virtual concatenated VC 12 card etc The NIU cards provide connection to the SDH core network through FO or coax cable STM 1 interfaces The built in cross connect matrix grooms all the VC 12 from all the tributary LIU s into the upstream STM 1 The maximum cross connect capacity for each LIU is 16 VC 12 s The 2 upstream NIU s can either carry a total of 126 unprotected VC 12 channels or it can provide Sub Network Connection Protection for selected VC 12 channels When all channels are protected the maximum upstream capacity is 63 VC 12s The LIU OFE at the LMX establishes channels and full speed fast Ethernet connection betwe
26. en LM and LMX to provide both and data services to the customer While the stream is loaded into VC 12 containers and aggregated into the upstream STM I for transmission across the SDH network the Ethernet 15 terminated at the LMX for connecting to the data network For applications where an Ethernet channel is to be established across the SDH network LMFIT with an Ethernet over virtual concatenated VC 12 interface card should be used In addition to STM 1 framing and multiplexing the NIU card also integrates other SDH equipment functions including a built in TUPP tributary unit pointer processor a 382 X 382 TU 12 cross connect matrix G 513 SDH equipment clock unit the orderwire telephone subsystem and the microcontroller unit for network management The orderwire subsystem allows an operator at the LMX to dial a LM One can also initiate a call at the LM side by pushing a hotline button The management of LMX is based on the SNMP protocol through a 10 management port RS232 console port is also available for command line operation on the equipment For maximum operational availability the LMX has set of redundancy options such as 1 1 power cards dual 48V DC power supply ports NIU 1 1 protection etc cards are hot plug protected The aluminum chassis of LMX is of 7 unit high and standard 19 inch wide The 16 half height LIU cards can provide independent CPE connections in the case of STM 1
27. hanges color Click on the network brings out the channel allocation command window as shown in Fig 5 7 In the window TU 12 from different LIU s and NIU s are MetroEdge Express User Manual V1 1 35 Beijing Huahuan Electronics Co Ltd Hua uan paired to form the association Subneti Olt link mode Connect information marked items are valid 1 Sourc Source a Sourc Prate Target Target Tar Prot direction a T 1E 0 1 4 2 132 13 5 Unidirection Auto validate equipments with connect information Eqiupments list marked items valid 1 Site Name Equipment 4 2 192 192 4 2 T 1 E 0 Auto validate connections with equipments information Cancel 36 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Request Management Subnet li I X SetRequest Total 4 SmNode Sr DstMode D AP 192 192 4 2 5 192 182 4 2 5 T T 1 E 0 2 192 192 4 2 S T 1 0 3 132 192 4 2 5 1 E 0 i Protecil vpe Set ProtectType Auto Scarch ProtectRing Query a Clear Reg Sre 192 192 4 2 NetManage ot Type 1 Slot Sdh Ethernet tu i 83 Port 1 TS 1 1 gt gt Fig 5 7 Channel Allocation Command Window 6 LL
28. he Fig 5 3 window appears Equipment X Equipment h9molmx eqp Name IP Address 192 182 e Network Mask 25h P55 255 D HIMOLMX Serials Cancel i MetroEdge Express User Manual V1 1 29 Beijing Huahuan Electronics Co Ltd Hua uan Fig 5 2 Node Address Info Window Power xi Unequipped 5 Failure Fig 5 3 Power Card Monitor Window Double click on a LIU brings up the LIU monitor window as shown in Fig 5 4 In the window alarming items are represented by a dot in appropriate circles Control commands such as El loop backs and Ethernet bandwidth settings are also set through dialog boxes in the window There are buttons on the window some are command activation buttons such as set and exit and other buttons may bring up a next level window For example click on the ErrCount button activates BER monitor window as shown in Fig 5 5 30 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Alarm Unit Info ErrCount Eth Interface Indication Backup Opt Ethernet C OW Alarm Unequipped Remote Power Fail LOF LOM AU LOP YCA AIS 50 C 1080 10512 C SF TU Alarm LOP AIS ALB LE Control L Query 0 Successfully Sent MetroEdge Express User Manual V1 1 31 Beijing Huahuan Electronics Ltd Hua uan 192 192 4 2110 5 Alarm Unit Info ErrCount Eth Un
29. ig 4 11 Power Plug Connection 4 3 3 Connect Optic Fiber Connect SC type fiber optic connectors into the SC socket on appropriate cards Pay attention to the transmit and receive relationship When plugging in the connectors make sure the peg on the connector is aligned with the opening on the socket Push firmly all the way until click Do not drag the fiber when unplugging On cards with single fiber transmission option only one fiber socket is used for both input and output Single fiber module transmits and receives optical signals in different wavelengths Usually the single fiber version LIU on LMX transmits at 1310nm and single fiber LM transmits at 1550nm Keep fiber bending radius above 50mm Please keep aside the socket cap and always cover the unused socket with the cap to prevent dust from entering the optical module 4 3 4 Network Management Connection On the NIU card there are two connectors for connecting to the management computer a 9 pin D connector console port and a RJ45 Ethernet port The console port is a RS232 serial port for command line access to the internal microcontroller system Pin definition for the D connector is given in Table 4 8 The console port can be connected to a VT100 dummy terminal or a PC running terminal emulation program such as the windows HyperTerminal The console port protocol 15 9600 baud 8 data bits 1 stop bit no parity no flow control The main function of the console 15 to modify
30. it info Slot ff Type Version Hardware 1 Software fo 0 FPGAB IB Transaction management entry to manage the node s transactions and 5 pees Cots Unit name Name 5 Close 192 192 4 2 LIU 5 Alarm Unit Info ErrCount Eth Ethernet Status C SDL Out Of Syne C Link Broken C Full Duplex C 100M Ethernet Flow Control Bandidth 0 1 00M OOM 100 l Successfully sent Close Fig 5 4 OPFE LIU Card Monitor Window 32 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co 192 192 4 7 LIU 3 ju xj Alarm Unitinfo ErrCount Eth Bit Error Rate 9 9 4 B1 TU12 1 2 2 gt 0 0 TUI2 ABIP I Successfully Sent Query Clear Fig 5 5 BER Window The NIU monitor window is shown in Fig 5 6 192 192 4 2 NIUE xl JO n Unit Info Trap Alarm 1 Clock ErrCount Unequipped HP UNEQ AU Self Heal HP 5SLM C C4 AIS LOS HP TIU BE TIU HP HDI HE OOF M amp S AIS SD SF Query 0 Close MetroEdge Express User Manual V1 1 33 Beijing Huahuan Electronics Co Ltd Hua uan xi JO Unit Info Trap Clock Err
31. k interface through 21xEI 7 connections B Are ee 48VDC connection card dual input sockets independent 48VDC power sources Auxiliary I O card including external clock alarm ma out and OW phone jack The slot type and part number are indicated on the card panel as shown in Fig 4 2 12 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd Part number note power and I O cards do not have separate part number the slot type is used as the part number Slot type Fig 4 2 Card identifiers 4 2 Functional Card This section introduces cards that are currently available New cards will be added when ready 4 2 1 Power Connect Card PWR IN The power connect card is used to connect 48VDC power supply to the LMX Two sets of power sockets can be used to connect to independent redundant 48VDC power sources Both power sources are supplied to each of the power cards Each power socket is associated with a LED indicator Two connectors come with the card They can be easily fixed to a power cable by the screws on the connector Make sure the polarity is correct when connecting the connectors H9MO LMX PIF 48V A8Y 48V 8 NT HMd MetroEdge Express User Manual V1 1 3 Beijing Huahuan Electronics Co Ltd Hua uan Fig 4 4 PWR IN Card 4 2 2 Power
32. larm conditions exist off hook the telephone automatically enters into cursor operation mode If keys are not pushed within 10s the phone will leave cursor mode and busy tone 15 heard One must hang up the phone and pick it up again to re enter the cursor mode Using cursor and enter keys can bring up detailed alarm display only if the slot does have alarm conditions One can make phone call in cursor mode by dial NN where NN is the intended number 4 3 6 2 Command Menu Double press asterisk key enters into command menu mode There are three menu items on the command menu Move up and down key to highlight a menu item and right key brings out the submenu Fig 4 15 shows the configuration submenu which displays currently installed cards 26 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd CON PILL L Fig 4 15 Configuration Submenu Press cursor right key moves to next level menu displaying all inktalled carad L L Highlight a card move to next level menu the software and hardware version of the installed card is displayed The address submenu displays the address information of the LMX equipment Four addresses are displayed from line 1 to line 4 kl IP address of this LMX node Sub network address mask Default gateway IP address LIU3 11015 Uninstall add
33. lf height slots are represented by single letters ji tull height slots are represented with stacked double letters as defined in Table 4 9 an aiei slots are left empty in the display but missing of an installed card will by a flashing letter Alarms 4 14 Alarm Indication Display Table 4 9 Letters Representing Occupied Slots Slot Power AUX IO LIU NIU ENIU PWR IN Letter I L N E N E The downward arrow and upward arrow 1 are used as cursors to point to a slot MetroEdge Express User Manual V1 1 25 Beijing Huahuan Electronics Co Ltd Hua uan position for further alarm inquirv The arrow 15 moved with cursor movement kevs on the phone Move the arrow to a slot in question press enter kev kev 5 brings up the detailed alarm list Alarms are shown in Table 4 10 Table 4 10 Alarm Definition Display CARD ABSENT Installed card 15 missing or power failure LOS 1052 Loss of SDH signal n SDH Signal Failure SDH Signal Degrade E1 LOS 1 TE 3 4 Loss of El signal at port 1 2 3 4 ETH LNK FAIL Ethernet link failure For a LIU alarm items on both local card and on remote LM are displayed represented by L and R respectively such as LIU 05 L ALM Alarm contents on the LIUS gt LIU 05 R ALM Alarm contents on the LM connected to LIUS gt Note The LCD will enter into alarm indication display only when alarm conditions exist With a
34. lock for reference The nominal clock frequency is 2048 kHz but may be in 2048 kbit s format The clock connections are made to the 3 coaxial connectors 2 inputs and output on the AUX IO card Choice for the coaxial connector outer conductor grounding is set by 3 jumpers on the AUX IO card as described in section 4 2 3 But the clock format selection is made by a jumper on the NIU card see section 4 2 5 Note that the clock format can not be independently set for the three clock signals 5 Management An access network built with MetroEdge Express product can be managed with the network management software package H7GMSW The detailed description of the software should refer to its user manual and online help Here only brief introduction is presented 5 1 H7GMSW Introduction The H7GMSW is a GUI based network element management software package It supports both SNMP and TABS protocols At the physical layer SNMP uses Ethernet while TABS uses RS485 to connect to the monitored equipment LMX supports SNMP and LM supports TABS only The software models the monitored network in 3 different perspectives the network area view the site element view and the equipment card view In the network area view icons represent equipment sites are connected with lines representing fiber optic connections forming networks Double click on a site icon enters into the site element view Installed equipment in the site are graphical
35. ly represented Double click on the equipment or cards inside the equipment brings up the equipment card window Alarms will be indicated at any level by flashing the respective icons and detailed defects are shown at the 28 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd equipment card window Control on individual equipment or card is also done at that window Control at the network level such as channel allocation is done at the network area window A software model of a piece of equipment must first be placed in the site element view for that equipment to be monitored by the software The graphical representation of the HOMO LMX is shown in Fig 5 1 After placing all the equipment into respective sites they are connected to form a fiber optic network by connecting site icons at the network area window DO HIMD LMX L3 WHEE PS Fig 5 1 H9MO LMX Icon Communication to the monitored equipment depends on its IP address The actual address of a physical equipment is set through its console port The icon module on the PC must have corresponding settings set at the node address window as shown in Fig 5 2 This window is brought up by double click on the LMX icon Note that the double click should be performed on the LMX frame rather than on one of the cards otherwise a window for that card will be activated For example if the double click is done at the lower PWR card t
36. nics Co Ltd Hua uan 0 25dB km 1550 with 6 to 8 dB margins 4 The option codes denote the optional choices In addition to the codes listed in the above table there are other options available 42 MetroEdge Express User Manual V1 1
37. r logical operations 3 2 Front Panel The front panel of a LM is shown in Fig 3 2 On the front panel there are alarm and status indication LED s mode switches fiber optic interfaces the OW jack and call button etc This section explains them in detail Note that the actual panel differs with different options especially the choice of FO interface modules FO Interfaces OW Call Button Mode switch A H9MO LM kO y A oLose 0105 indication El Alarms Line status Fig 3 2 LM Front Panel The LED s The LED s on the front panel indicates the operation status and alarms of the LM unit They are listed in Table 3 1 Table 3 1 LED s H9MO LM SV Power indication 22 F3 Orderwire telephone call indication Local and remote R receive bit error indication ERR R On Severe bit error on fiber link Wink sporadic bit error on fiber link Off no received bit error nth port condition indication On loss of incoming HDB3 signal LOS Fast wink 0 5s AIS or HDB3 code violation Slow wink 1s the port is in loop back mode Off normal operation or alarm masked 6 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Optical line status OLOS for single port option OLOSA and Wink Loss of frame OLOSB for 1 1 On Loss of incoming optical
38. rd as listed Table 4 3 but they represent status on links to two separate CPE s instead of the 1 1 protected links to the same CPE 18 MetroEdge Express User Manual V1 1 Huahuan Beijing Huahuan Electronics Co Ltd H9MO LMX OLT FO Module FO Module Fig 4 8 OSUBS LIU Card 4 2 7 STM I Network Interface Card 155 O 155 E The STM 1 NIU card on a LMX aggregates VC 12 traffic from all tributary LIU s into a STM 1 stream It is the interface card to the core SDH transport network This card is highly integrated In addition to STM 1 framing and multiplexing functions the card also contains functional blocks such as a 382x382 VC 12 cross connect matrix the SEC clock subsystem that confirms to ITU T G 813 the micro controller and the orderwire telephone subsystem these functional blocks can work in 1 1 redundant mode if both NIU cards are installed 1n the same LMX Differ in STM 1 physical interfaces the STM 1 NIU card comes in two versions The 155 O 15 optical and 155 16 electrical Otherwise they are identical Fig 4 9 shows both interfaces on the same card representing both 155 O and 155 E On the face panel there are 4 LED s the STM 1 sockets BNC for 155 E and SC for155 O DB9 console connector and a 1 network management port Inside the 155 E there are 2 jumpers behind the BNC sockets denoted CNM5 and CNM6 for grounding the outer conductors of the BNC coaxial socket Another
39. ree Lift up the LOPR dip Connect the and the Ethernet cables to appropriate ports Check their status LED s The link should work as intended The maximum channel bandwidth of the Ethernet 15 1OOMbit s However the bandwidth may be modified by software down to IMbit s in 1 Mbit s steps The bandwidth setting is saved in non volatile memory so a previous setting may affect the current installation Make sure the bandwidth is set as intended If the LM 15 connected to the LMX the bandwidth setting on LM will not take effect thus avoiding potential unauthorized modification of bandwidth SLA at the CPE site If some of the ports are not used you may disable the relative alarm LED s pressing down the MASK dip and lift up again All current El alarms will be masked out hereafter When in a future time the free El ports are used the MASK dip should be flipped again with correct signal applied to the ports A new alarm mask will then replace the previously set alarm mask 4 LUJH9MO LMX 4 1 Structure The LMX chassis is a multi slot aluminum box as shown in Fig 4 1 It has 16 tributary slots labeled LIU s 2 network interface slots labeled NIU s 2 extended NIU slots labeled ENIU s and slots for power cards labeled PWR s a power connection card slot PWR IN and an auxiliary I O card slot labeled AUX IO T Z gt gt MetroEdge Express User Manual V1 1 11 Beijing Huahuan Electronics Co
40. ress of Ethernet management port of this node The alarm mask submenu is used to set or clear alarm masks All alarms persisting at the time of issuing Set Alarm Mask command will be masked out In other words these EN Us Uninst defects will not generate alarms The Clear Alarm Mask command will clear any alarm mask previously set Note that both set and clear alarm commands are effective only to the local LMX it will not affect alarm masks at remote units 4 3 7 Shelf Alarm Output On the AUX IO card there 15 a connector labeled ALARM which 15 the shelf alarm output connector The upper pin is the prompt alarm output and the lower 15 the Lower Pwr Card Uninstalled deferred alarm output Defects triggering the respective alarm outputs are set by management software and can be masked out by Set Alarm Mask command The alarm condition is represented by grounding the output pin Otherwise the pin will be floated A separate product the shelf alarm unit with 8 pairs of alarm input can be used to generate audible alarm siren Connection between the LMX and the shelf alarm unit MetroEdge Express User Manual V1 1 27 Beijing Huahuan Electronics Co Ltd Hua uan is made by inserting each end of an alarm cable into the alarm ports see Fig 4 16 Fig 4 16 The Alarm Connector 4 3 8 External Clocks Up to 2 external clock signals may be connected to LMX for synchronization It can also output a c
41. signal Off Normal protection option ETH L Ethernet link indication On the rear panel ETH F Y Ethernet duplex mode at the RJ45 jack On Full duplex Off Half duplex Wink Collision FO Interface Default fiber optic interface is the dual fiber SC socket type with nominal wavelength of 1310nm and link range of under 40km Tx denotes output port and Rx the input port With single fiber option only one fiber socket is used for both input and output Single fiber module transmits and receives optical signals in different wavelengths Only transmit wavelength is specified Usually the single fiber version LIU on LMX transmits at 1310nm and single fiber LM transmits at 1550nm Note that when two single fiber LM s are to be linked point to point they must have different transmit wavelength Orderwire The phone jack on the front panel can be connected to a 4 wire handset Note that telephone handset pin out may differ for different manufacturers The pin out on the LM is given in Table 3 2 Handsets with a different pin arrangement will not work Table 3 2 OW socket pin arrangement F Note the R and R is connected to the microphone in the handset and the T and T is connected to the earphone in the handset The TALK push button acts as the telephone hook Push down the button generates off hook signal and rings the remote to initiate the call It is also used to receive a call The Dip Switches There are
42. ss of incoming STM 1 set by sienal software PETH L G Linkinditor o LED s Duplex indicator On the ETH F Y On full duplex RJ45 Off half duplex jack Wink collision Table 4 6 Jumper setting on STM 1 NIU Card Jumper umper Settings CNM5 STM 1 output BNC outer conductor grounding select 155 E only Upper grounding detault Lower float EE erounding Lower float default External clock format 4 3 Installation and Operation 4 3 1 Mechanical The aluminum chassis of LMX is 19 inches wide and 7 U height The chassis is dual front meaning that the mounting ears can be attached to either side of the box as shown in Fig 4 10 A and Fig 4 10 B When side A is used as the front panel 3 LED s indicate system alarm status in general and detailed alarm information 15 shown on the LCD display If side B is the front alarms are indicated by a number of LED s on individual cards The 3 LED s on side A are explained in table 4 7 Table 4 7 LED s on Side A of LMX Winks when system is in operation ALMD Winks to indicate differed alarms ALMP Winks to indicate prompt alarms MetroEdge Express User Manual V1 1 21 Beijing Huahuan Electronics Ltd Hua uan H9MO LMX LCD Display Hua uan A Back plane side qo
43. ts The H9MO LM can be powered either with 48VDC or 220VAC supply The flip switch selects the power input When flipped up 48VDC is selected and 220VAC is selected with switch flipped down The middle position switches the power off Use standard AC power cord supplied with the unit to connect to the 220VAC power supply Use power outlet with secure earth connection to avoid danger of electric shock 48VDC power supply is connected to the LM through the PWR IN socket a plug is supplied for the socket Connect power wires to the plug according to Fig 3 5 Insert the prepared wire end into the hole on the left end of the plug tighten the screw to securely fix MetroEdge Express User Manual V1 1 9 Beijing Huahuan Electronics Co Ltd Hua uan the wire to the plug After fixing all the wires push the plug into the socket 2 4 7 mm La UI Fig 3 5 48VDC Connector Wiring 3 4 Physical Dimensions H9MO LM is housed in a standard 19 inch wide 1 unit high compact metal case The dimensions are shown in Fig 3 6 4 465mm Fig 3 6 H9MO LM Chassis Dimensions 3 5 Installation and Operation Connect power supply with correct voltage to the appropriate power in sockets Connect fiber optic connectors into the FO socket on the front panel Pay attention to the transmit and rec
44. y equipment other than LM such as the remote module of switch equipment etc as long as it has a standard STM 1 port as depicted the diagram The traffic from CPE s are aggregated into the upstream STM 1 and carried over the SDH network to the business center or anywhere on the network The Ethernet traffic 1s sent over the public packet network or it may also be carried by the SDH network using EoS technology At the business center such as the customer s headquarter the LM X is configured as a channel bank providing multiple El and Ethernet access to the SDH network through STM 1 links Compared with traditional PDH access platforms the MetroEdge Express connects to the core network through STM 1 links rather than multiple E1 cables This translates to substantial savings on the number of cards cables DDF racks as well as floor space On the access line side the standard STM 1 interface makes it possible for any CPE equipment with a STM 1 port to be connected to the MetroEdge Express directly instead of through stand alone fiber optic modems For CPE s with Ethernet or V 35 ports direct mapping of these data streams into VC 12 containers eliminates the need for additional converters All these advantages reduce CPEX for the operators 15 also lowered with the MetroEdge Express The elimination of multiple cables and converters between simplifies the installation provision and maintenance
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