Gemini Fiber Mux
Contents
1. ON DEVICE SIDE MULTIPLEXER 2 LEGEND SWITCH 1 OFF SWITCH 2 oN CONFIGURATION SWITCHES ON DEVICE SIDE MULTIPLEXER RING MODE 1 2 LEGEND SWITCH 1 OFH SWITCH 2 oF CONFIGURATION SWITCHES 11 Gemini Express Fiber Multiplexer User s Guide MODE DESCRIPTION A POINT TO POINT link is comprised of two Multiplexers connected by a single backbone A diagram of a POINT TO POINT link is provided below DEVICE CONNECTIONS RX HOST PORT FIBER OPTIC BACKBONE CONNECTIONS RX MULTIPLEXER MULTIPLEXER Multiple Multiplexers which are connected in series with fiber optic transmit to fiber optic receive constitute a RING topology A diagram of a RING application is provided below DEVICE CONNECTIONS HOST PORT FIBER OPTIC BACKBONE DEVICE CONNECTIONS CONNECTIONS MULTIPLEXER MULTIPLEXER DEVICE CONNECTIONS 12 Gemini Express Fiber Multiplexer User s Guide COLLAPSED RINGS The Ring mode is seldom implemented as depicted in the previous section Typically fiber optic cables star out from a central location Therefore interconnecting the fiber optic star segments at the central location creates a ring This technique is known as a collapsed ring FIBER OPTIC PATCH PANEL HOST MULTIPLEXER REMOTE MULTIPLEXER 2 REMOTE MULTIPLEXER 3 COLLAPSED RING 132. RX Activity LED Green LED activates when a signal is received from the fiber optic aggregate link and the MULTIPLEXER synchronizes to it Polling Group Status LEDs The upper green LEDs are express mode indicators These LEDs activate when an express signal is detected and remain on until a 1MBPS signal is detected or a system reset occurs The lower green LEDs are data activity indicators These LEDs activate when a signal is present Polling Group Connectors There are two polling groups Each polling group has been divided into two port groups Polling group 1 consists of ports 0 3 port groups A amp B and Polling group 2 consists of ports 4 7 port groups C amp D Ports within a olling group must be connected to ports from a common FIBER PRODUCT DB25 OPTIC IDENTIFICATION LINK LABEL FCC LABEL EXTERNAL POWER SUPPLY CONFIGURATION DC POWER SWITCHES CONNECTION Gemini Express Fiber Multiplexer User s Guide controller 10 Gemini Express Fiber Multiplexer User s Guide CONFIGURATION The configuration switch settings are shown below HOST SIDE MULTIPLEXER POINT TO POINT MODE _ ON LEGEND 12 SWITCH 1 ON SWITCH 2 CONFIGURATION SWITCHES HOST SIDE MULTIPLEXER ON gie mem 1 2 LEGEND SWITCH 1 ON SWITCH 2 OFF CONFIGURATION SWITCHES __ TO POINT MODE
3. The Gemini Express Fiber Multiplexer TX LED is off e Contact Ringdale technical support 22 Gemini Express Fiber Multiplexer User s Guide A device is down or unstable Verify that there is one host polling group per Gemini Express Fiber Multiplexer polling group Verify that the host s device type matches the device Verify that the host workstation controller s WSC capacity has not been exceeded Verify that the device is properly terminated A peripheral is terminated when its twinaxial port has two 54 9 ohm resistors located between the A phase pin amp earth ground and the B phase pin amp earth ground Termination is provided by a Y or T cable assembly or by a terminating balun i e ASFT series Verify that there are no polarity reversals in the cable Verify that the cable distance does not exceed the Gemini Express Fiber Multiplexer specification Verify that the cable is data grade Verify that the wiring uses natural pairs Verify that the wiring avoids sources of environmental noise Verify that the balun s pinout matches the Gemini Express Fiber Multiplexer s pinout Verify that the host side balun s pinout polarity match the device side balun s pinout polarity Devices interfere with each other Verify that there is one host polling group per Gemini Express Fiber Multiplexer polling group Verify that devices on star segments have unique addresses Verify that all devices are p
4. make certain that the workstation addresses are grouped such that the devices in addresses 0 3 in the same group and 4 7 are a different group from the 0 3 group 27 Gemini Express Fiber Multiplexer User s Guide SPECIFICATIONS Protocol Data rate Number of ports Port connector types Cable Distances 5250 1 amp 2Mbps transparent 8 Shielded RJ45 or DB25 Cable Type Data Rate Location Distance Category 3 1X Host to GXM up to 2000 ft Category 3 1X GXM to Device up to 1800 ft Category 3 1X GXM to GEMINI up to 1000 ft Category 3 2X Host to GXM up to 1000 ft Category 3 2X GXM to Device up to 900 ft Category 3 2X GXM to GEMINI HUB up to 500 ft Category 5 1X Host to GXM up to 2000 ft Category 5 1X GXM to Device up to 2200 ft Category 5 1X GXM to GEMINI HUB up to 1200 ft Category 5 2X Host to GXM up to 1500 ft Category 5 2X GXM to Device up to 1650 ft Category 5 2X GXM to GEMINI up to 900 ft Note Distances must be de rated as follows 62 ft per category interconnect for 1X e 38 ft per category 3 interconnect for 2X e 16 ft per category 5 interconnect for 1X e 11 ft per category 5 interconnect for 2X Cable distances over 1000 must be de rated by 25 for ring applications Distance fiber optic backbone 62 5 micron multimode fiber Point to Point Ring 3 Units Ring 4 Units Active data pins up to 2 Kilometers up to 1 5 Kilometers between units and up to 4
5. 5 Kilometers overall up to 1 Kilometers between units and up to 4 Kilometers overall 28 Configurable per customer requirement Gemini Express Fiber Multiplexer User s Guide Optical Specifications Fiber optic budget point to point Fiber optic budget ring 3 unit ring 4 unit ring Peak power wavelength Fiber optic connectors Power requirements Power supply type Dimensions Warranty 29 12 dB typical 10 dB typical 8 dB typical 820 nanometers two ST style 90 to 250 VAC at 50 to 60 Hz External 1 75 x 19 1U Three years Gemini Express Fiber Multiplexer User s Guide WARRANTY STATEMENT This Ringdale product is warranted to be free from defects in material and workmanship for a period of three years from the date of purchase Ringdale s liability under this warranty is limited to cure repair or replacement of the product Ringdale shall not be liable for injury property damage or other direct or direct consequential damage including but not limited to loss of profits or other damage or expenses arising directly or indirectly from the installation removal maintenance use or non use of the product used separately or in combination with other equipment These warranties shall become void where it is determined at the sole discretion of Ringdale that the product has been exposed to excessive physical or operational abuse acts of God or theft Repairs performed by someone other than
6. SWITCH 1 OFF SWITCH 2 ON for a point to point application or SWITCH 1 OFF SWITCH 2 OFF for a ring application The Gemini Express Fiber Multiplexer is designed for a 19 rack The unit should be properly installed using all four mounting holes Rack hardware is not provided It is recommended that plastic or nylon washers be used under mounting screws to protect the star s finish WARNING DO NOT LOOK INTO ANY FIBER OPTIC CONNECTOR OR FIBER OPTIC CABLE 19 Gemini Express Fiber Multiplexer User s Guide 3 The Gemini Express Fiber Multiplexer has ST style fiber optic connectors For point to point applications connect the multimode fiber optic cable attached to the host side Multiplexer s TX to the device side multiplexer s RX optical link connector located on the rear panel of the Gemini Express Fiber Multiplexer and connect the multimode fiber optic cable attached to the host side Multiplexer 5 RX to the device side Multiplexer s TX optical link connector located on the rear panel of the Gemini Express Fiber Multiplexer For ring applications connect the fiber optic TX of a Multiplexer to the fiber optic RX of the next multiplexer down stream in the ring until the ring is complete Ensure that the cables are properly strained relieved and labeled Connect the Gemini Express Fiber Multiplexer ports to the host ports of the GEMINI active or passive star and follow the installation procedure for the star Th
7. by Ringdale will void this warranty This warranty is in lieu of any and all other warranties expressed or implied by Ringdale representatives or distribution including fitness for particular purpose and merchantability The customer may at their option purchase an Assist Service Agreement that would provide same day overnight shipping response for field replacement of faulty equipment to maintain your data communication system while equipment repairs are completed Contact our Sales department for further details 30 Gemini Express Fiber Multiplexer User s Guide RETURN MERCHANDISE PROCEDURE In the event that the product is not as warranted the customer must contact Ringdale for a return merchandise authorization number RMA before returning the product to the Ringdale facility in Georgetown Texas USA Out of warranty repairs are available on a time and materials basis The customer must contact Ringdale for a return merchant number RMA prior to shipping the malfunctioning unit to Ringdale The customer is responsible for all shipping and insurance charges to and from Ringdale facility in Georgetown Texas USA Ringdale Inc 101 Halmar Cove Georgetown Texas USA 78628 Toll free 888 288 9080 Tel 512 288 9080 Fax 512 869 2621 www nlynx com www ringdale com 31
8. by any shielding It is the primary wire type for telephone usage and is very common for computer networking especially in patch cables or temporary network connections due to the high flexibility of the cables 21 Gemini Express Fiber Multiplexer User s Guide PROBLEM SOLVING If problems are encountered with the Gemini Express Fiber Multiplexer the following guideline is intended to provide a quick resolution 1 Collect all information relevant to this application e Gemini Express Fiber Multiplexer serial numbers Host type and operating system software level Quantity and type of peripheral devices Interconnecting cable types and distances Equipment environment Interconnection diagrams 2 Setup the application with all Multiplexers in one room interconnected with fiber optic jumpers Verify the application with a host port and a terminal 3 Search through the common problems and possible causes provided below The Gemini Express Fiber Multiplexer front panel power LED is off e Verify that the AC amp DC connections are proper e Verify that the AC outlet is functioning correctly If the problem persists observe the status of the external power supply s LED and contact Ringdale s technical support The Gemini Express Fiber Multiplexer RX LED is off or flashing e Verify that the fiber optic connectors are properly connected e Verify that the fiber optic budget and distance has not been exceeded
9. BEL The active pair may be re configured by performing the following procedure e Disconnect all power to the unit e Remove the two top cover screws located on the rear panel e Gently slide the top cover back one inch Hold the top cover and tilt it up Reconfigure the jumpers located behind the RJ45 connectors required Settings for polarity and active pair assignment are shown below ACTIVE PAIR JUMPER SETTINGS It should be noted that connections to the DB25 and the RJ45s are mutually exclusive If any of the three pairs of the RJ45 are selected the DB25 is disconnected If the DB25 is selected the RJ45s are disconnected All jumper settings must be identical To reinstall the top cover tilt the top cover down and slide the top cover forward until it mates completely with the bottom cover Install the 2 top cover screws Gemini Express Fiber Multiplexer User s Guide RJ45 RJ45 RJ45 RJ45 4 5 RJ45 3 6 RJ45 1 2 DB25 Gemini Express Fiber Multiplexer User s Guide DESCRIPTION The Gemini Express Fiber Multiplexer s indicators and connections are described below GEMINI EXPRESS MULTIPLEXER MULTI CONTROLLER FIBER OPTIC vex Polling Polling Power Group 1 Group 2 Hep Fiber Status LEDs Power LED Amber LED activates when the Gemini Express Fiber Multiplexer is powered up TX Activity LED Green LED activates when a signal is transmitted to the fiber optic aggregate link
10. Divide the TWINAX brick in two Ports 0 3 comprise one polling group and ports 4 7 make up the other polling group The TWINAX Brick Detail illustrates a proper connection 16 Gemini Express Fiber Multiplexer User s Guide 62 5 micron multimode fiber SYSTEM 3X Balun amp T cable Up to 8 Twinax Ports mE amp ASF Baluns WALL Typical System 3X Installation 17 Gemini Express Fiber Multiplexer User s Guide INSTALLATION Host side multiplexer installation 1 Set the configuration switches on the rear panel of the host side Gemini Express Fiber Multiplexer as follows SWITCH 1 ON SWITCH 2 ON for point to point or SWITCH 1 ON SWITCH 2 OFF for a ring application 2 The Gemini Express Fiber Multiplexer is designed for a 19 rack The unit should be properly installed using all four mounting holes Rack hardware is not provided It is recommended that plastic or nylon washers be used under mounting screws to protect the chassis s finish 3 A polling group is a group of ports that have one port active at time The new 5 400 workstation controllers WSC have two polling groups Ports 0 3 and ports 4 7 constitute the two groups The Gemini Express Fiber Multiplexer can accommodate two polling in the same fashion The Gemini Express Fiber Multiplexer polling group 1 consists of ports 0 3 and Gemini Express Fiber Multiplexer polling group 2 consists of ports 4 7 Do not conn
11. Gemini Express Fiber Multiplexer User s Guide CONNECTIONS 62 5 micron multimode 0000000 GXM p 400 8 Port Twinax Brick ASF Baluns See below for Typical AS 400 Installation 14 Gemini Express Fiber Multiplexer User s Guide 62 5 micron multimode _ UTP cabling AS 400 0825 to DB25 Balun amp T cable STP CABLE WALL AS 400 TWINAX Brick Detail As 400 wsc ro Gxm_ POLLING GROUP 1 POLLING GROUP 2 I PORT O gt en PORTE 1 5 e rons PORT 2 lt Porte PORT 3 4 gt Ks gt port 7 PORT amp POLLING GROUP ASSIGNMENTS ON THE TWINAX BRICK FOR THE NEW AS 400 WSC WITH SPLIT POLLING FEATURE FRONT VIEW Typical AS 400 Direct Connect Installation 15 Gemini Express Fiber Multiplexer User s Guide 62 5 micron multimode fiber pud uui Remote P E p Controller UTP cabling SHES 4 PANEL Balun amp T jur Two 4 Port Twinax Ej Bricks amp ASF Baluns _ WALL Typical Remote Controller Installation A major difference between the newer AS 400 workstation controllers WSC and the older WSCs is the number of polling groups The older WSCs had one polling group for all eight ports The newer WSCs have two polling groups
12. VARINGDALE Connecting people and information www ringdale com Gemini Express Fiber Multiplexer User s Guide Document 62 400260101 Rev February 2007 Nynex Connecting made easy Gemini Express Fiber Multiplexer User s Guide TABLE OF CONTENTS TABLE OF CONTENTS GLOSSARY PROBLEM SOLVING SPECIFICATIONS IER WARRANTY 5 Document 62 400260101 Gemini Express Fiber Multiplexer User s Guide SAFETY NOTE READ THIS FIRST 1 2 3 4 5 6 7 8 9 Do not look into any fiber optic connection or fiber optic cable Do not connect Gemini Express Fiber Multiplexer to any type of public network Do not connect any outdoor cabling to the Gemini Express Fiber Multiplexer without proper lightning protection Do not use unauthorized power supplies or cables Do not connect to non 5250 protocol devices Do not disassemble or modify the power supply and its cables Disconnect all cables prior to configuration Devices attached to the UTP network must comply with the voltage and current limits for Class 2 Power Limited Signal Circuits as defined by article 725 of the National Electrical Code and Section 16 of the Canadian Electrical Code For your safety receptacles must be properly wired and grounded 10 Never attem
13. combined with the other components provides the correct impedance When you use RJ wiring the direct connection between the devices is lost Therefore the balun needs to provide that same impedance The resistor in the balun provides 45 ohms Because the problem with impedance balancing you are not supposed to configure in a daisy chain SOLUTION If you are configured with a daisy chain carefully resolve your impedance balancing If not do not use flat silver satin cable Only UTP If using STP it must have nominal impedance very close to 100 ohms Allow a 10 foot service loop at each end To estimate differences of existing wire perform a DC resistance measurement Must match balun specification PROBLEM When he is able to get a connection the terminals come up but the screen is not completely displayed they are slow and then finally drop out CAUSE There are two polling groups Each polling group has been divided into two port groups Polling group 1 consists of ports 0 3 port groups A amp B and polling group 2 consists of ports 4 7 port groups C amp D Ports within a polling group must be connected to ports from a common controller 26 Gemini Express Fiber Multiplexer User s Guide The reason for this is to support the new AS 400 Split Controller function used in the 5250 Express Data Stream It splits the addresses 0 3 and 4 7 logically SOLUTION When plugging the CAT5 connections in
14. e external power supply is mounted on the rear panel of the Gemini Express Fiber Multiplexer The AC power cord must be firmly inserted into the external power supply and strained relieved Insert the male end of the AC power cord into a properly wired receptacle All data amp mode LED s on the Gemini Express Fiber Multiplexer will activate for two seconds and fade off The amber power LED on the front panel the green power LED on the top of the external power supply and the TX amp RX LEDs will activate and remain on If any terminals are on the data activity LEDs will activate If express devices and an express host are attached the port status LEDs upper green LEDs will activate Devices in a ring application will not show a sign on screen until the ring is complete 20 Gemini Express Fiber Multiplexer User s Guide GLOSSARY ASF Advanced System Filtered Terminated Balun A balun converts from a balanced to an un balanced cable Twinaxial wiring is balanced UTP is not Twinaxial Cabling used by IBM It has two wires and a shield It provides known impedance UTP Unshielded Twisted Pair cabling is the most common cable used in computer networking It is a variant of twisted pair cabling UTP cables are often called Ethernet cables after Ethernet the most common data networking standard that utilizes UTP cables however in this use it is not Ethernet In contrast to STP cabling UTP cable is not surrounded
15. eater than standard legacy 1Mbps 5250 protocols The Gemini Express Multiplexer has 8 Shielded RJ45 port connections as well as a 0825 direct connection eliminating the need for the twinax brick and associated twinaxial cabling Link connectivity is via ST fiber optic multi mode connection with ability to operate in both point to point and multi point ring topologies reducing hardware requirements by up to 50 Other features include Advanced Noise Filtering LED Port Diagnostics Configurable UTP Pin Assignments and a Field Replaceable wide ranging Power Supply Gemini Express Fiber Multiplexer User s Guide UNPACKING Remove the packing material and check for the items below GROUPD Gemini Express Fiber Multiplexer A 100 240 VAC input external power supply is attached on the rear panel Gemini Express Multiplexer User s Guide USER S MANUAL AC POWER CORD North American units only Visually inspect all items for damage If any component is damaged contact Ringdale for a replacement DO NOT APPLY POWER TO ANY DAMAGED COMPONENT Gemini Express Fiber Multiplexer User s Guide ACTIVE PAIR SETUP All Gemini Express Fiber Multiplexers can factory configured per customer request The factory default MODEL GXM8 45 PINS 4 5 3 6 1 2 S N XXXXXXXXXX setting is Pins 4 amp 5 Different configurations will be indicated on the label on the bottom of the unit IDENTIFICATION LA
16. ect more than one host polling group to a Gemini Express Fiber Multiplexer polling group Connect the host ports to the Gemini Express Fiber Multiplexer ports WARNING DO NOT LOOK INTO ANY FIBER OPTIC CONNECTOR OR FIBER OPTIC CABLE 4 The Gemini Express Fiber Multiplexer has ST style fiber optic connectors Connect the multimode fiber optic cables to the optical link connectors located on the rear panel of the MULTIPLEXER Note the fiber color or number on the TX amp RX to ensure proper connection at the remote multiplexer location Strain relieve and label all cables 18 Gemini Express Fiber Multiplexer User s Guide The external power supply is mounted on the rear panel of the Gemini Express Fiber Multiplexer The AC power cord must be firmly inserted into the external power supply and strained relieved Insert the male end of the AC power cord into a properly wired receptacle All data amp mode LED s on the Gemini Express Fiber Multiplexer will activate for two seconds and fade off The amber power LED on the front panel the green power led on the top of the external power supply and the TX LED will activate and remain on At this time the data activity LEDs will flash at the host s polling rate The RX LED will be off until the remote Multiplexer is installed Device side Multiplexer installation Set the configuration switches on the rear panel of the device side Gemini Express Fiber Multiplexer as follows
17. pt to service equipment connected to the data cable network or the grounded receptacle during an electrical storm Exposure to lethal voltages may occur when lightning is present Gemini Express Fiber Multiplexer User s Guide The following FCC statement applies to the NLynx Gemini Express Fiber Multiplexer Federal Communications Commission FCC Statement This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which the user will be required to correct the interference at your own expense Unauthorized changes or modifications could void the user s authority to operate the equipment This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Classification of LED Transmitter Device Important The optical t
18. ransmitter contains an LED system and is classified CLASS 1 LED PRODUCT per EN60825 1 11 Safety of Laser Products Contact Ringdale for repair if your Gemini Express Fiber Multiplexer ever requires maintenance Document 62 400260101 Gemini Express Fiber Multiplexer User s Guide INTRODUCTION This user s manual is for the Gemini Express Fiber Multiplexer for use with the IBM 5250 protocol The 5250 family of products consists of the IBM s System 34 36 38 and the AS 400 along with many supporting devices manufactured by IBM and other companies The Gemini Express Fiber Multiplexer works with all devices that are designed within the 5250 specifications Gemini Express Fiber Multiplexer Ringdale s Gemini Eight Port Express Fiber Optic Multiplexer part number 00 31 2313 0001 offers the unique ability to allow multiple AS 400 controller polling groups to be transmitted over a single fiber optic pair This feature allows all new AS 400e controllers to provide their maximum throughput potential in either 1Mbps Optimized or 2Mbps Express mode by transparently multiplexing the split polling feature without requiring performance robbing PTF s All new IBM controllers support the split polling feature as a means of achieving higher throughput rates even when connected to standard legacy devices The Gemini Express Multiplexer allows the split polling feature to remain enabled with performance of up to 4 times gr
19. roperly terminated Devices cannot operate in Express mode Verify that the host and the device are capable of Express mode Verify that all interconnecting components support the Express mode Verify that all devices on the port are Express ready Verify that all cable distances are within the Express specification 23 Gemini Express Fiber Multiplexer User s Guide The controller may have down shifted to 1MBPS due to errors during installation The controller will retry the Express mode in approximately one hour Flashing Express LEDs Determine the number of Express devices on the port If there are less than seven devices the flashing Express LED is normal Express LED on without data activity the host is disconnected during an express connection the express LED remains on PROBLEM Some terminals come up and then go back down The cursor jumps from the upper left to the upper right CAUSE This is typical of a station address conflict A common misunderstanding with hubs is that you do not have to observe station address conflicts SOLUTION You cannot duplicate station addresses on the same hub PROBLEM The first terminal comes up but then drops CAUSE If you move off of a balanced network twinax to an UNbalanced network balUN what you are UNbalancing is the impedance 24 Gemini Express Fiber Multiplexer User s Guide SOLUTION You can make it up on one of RJ45 end
20. s at the cost of decreasing the maximum cable distance or you can add a bit of cable OR you can use baluns that have a short piece of twinax tail Some balun manufacturers recommend a minimum cable length of 15 feet PROBLEM It does not work at all CAUSE You could have a polarity mismatch Twinax has two conductors so that means 2 Tips and Zero rings so you cannot truly say that any balun is Tip or Ring The two conductors on Twinax cable are called Phase A and Phase B All that you can say is which pins are active and which pins of the RJ connector connects to A or B of the Twinax connector SOLUTION Our Gemini hubs use auto sensing and don t care what baluns are on the hinter ends but you must match the polarity of the host connection to the ports If you use passive hubs or connect the baluns back to back the baluns must be in pairs Flip the connector by snipping the cable flipping and putting a new connector on If most devices are working you will change the devices that do not work If none work then you should change the host end PROBLEM The first terminal works the last terminal works but the ones in between do not CAUSE 25 Gemini Express Fiber Multiplexer User s Guide This is typical of an impedance balance mismatch IBM s Twinax cabling connections use balanced signal With Twinax it is required that there is 100 ohms of impedance Twinax cable itself provides impedance as well This
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