Emerald-MM-8Plus User Manual
Contents
1. A1 A32 CO C19 ML B32 DO p19 J1 Connector J2 Connector Connector Pinout J2 Connector Pinout A1 B1 GND GND CO DO GND 507 A2 B2 RESETDRV SBHE C1 D1 MEMCS16 SD6 A3 B3 5V LA23 C2 D2 IOCS16 SD5 A4 B4 IRQ9 LA22 C3 D3 IRQ10 SD4 A5 B5 5V LA21 C4 D4 IRQ11 03 B6 DRQ2 LA20 C5 D5 IRQ12 502 AT B7 12V LA19 C6 D6 IRQ15 SD1 A8 B8 ENDXFR LA18 C7 D7 IRQ14 SDO A9 B9 12V LA17 C8 D8 DACKO IOCHRDY A10 B10 keyed MEMR C9 09 DRQO AEN A11 B11 SMEMW MEMW C10 D10 DACK5 SA19 A12 B12 SMEMR SD8 C11 D11 DRQ5 SA18 A13 B13 IOW 09 C12 012 DACK6 SA17 A14 B14 IOR SD10 C13 D13 DRQ6 SA16 A15 B15 DACK3 SD11 C14 D14 DACKT SA15 A16 B16 DRQ3 012 C15 D15 DRQ7 SA14 A17 B17 DACK1 SD13 C16 D16 5 SA13 A18 B18 DRQ1 SD14 C17 D17 MASTER SA12 A19 B19 REFRESH SD15 C18 D18 GND SA11 A20 B20 SYSCLK keyed C19 D19 GND SA10 A21 B21 IRQ7 SA9 A22 B22 IRQ6 SA8 A23 B23 IRQ5 SA7 A24 B24 IRQ4 SA6 A25 B25 IRQ3 SA5 A26 B26 DACK2 SA4 A27 B27 TC SA3 A28 B28 BALE 2 A29 B29 5V SA1 A30 B30 OSC SAO A31 B31 GND GND A32 B32 GND Diamond Systems Corporation Emerald MM 8Plus User Manual Page 8 PC 104 Plus PCI Bus The PC 104 Plus2. 20 Diamond Systems Corporation Emerald MM 8Plus User Manual Page 3 Introduction Emerald MM 8Plus is a PC 104 Plus module with four or eight serial ports connected through the PCI bus Each port supports RS 232 RS 422 RS 485 and 5V TTL interfaces using jumper configuration The board also has eight digital I O lines and a 16 bit counter timer Emerald MM 8Plus is connector compatible with the Emerald MM 8P Emerald MM 8M and Emerald MM 8232 boards It is compatible with all Diamond Systems Corporation CPUs with PC 104 Plus connectors The board is intended to be compatible with any CPU with a PC 104 Plus expansion socket and operates with both 3 3V and SV PCII O voltage buses Description and Features Two I O headers are provided with four serial ports on each header The board operates on 5V only eliminating the need for a 12V supply that is often required for serial port operation Emerald MM 8Plus is based on the Exar XR17D158IV Octal UART This device contains eight identical sets of registers one set for each port The registers are compatible with the standard PC serial port Each port contains a 64 byte FIFO The Emerald MM 8Plus has the following features e I O connectors compatible with Emerald MM 8P two connectors 40 pins four ports per connector Eight serial ports based on Exar XR17D158IV Octal UART with 64 byte FIFOs e RS 232 RS 422 RS 485 and TTL interfaces supported RS 232 422 48
3. Figure 2 EMM 8Plus Board Layout J3 J14 J7 C ak e 222222521252225222222252251225222 Diamond Systems Corporation Emerald MM 8Plus User Manual Page 6 Connector Summary The following tables list the Emerald MM 8Plus board connectors Connector Description Manufacturer Part No PC 104 ISA bus EPT 962 60323 12 J2 PC 104 ISA bus C D EPT 962 60203 12 J3 PC 104 Plus PCI bus connector 14 Serial ports 1 4 J5 Serial ports 5 8 J15 Digital I O and counter timer Jumper Summary The following table lists the Emerald MM 8Plus jumpers Jumper Description J6 PCI bus slot selection J7 J10 port configuration Serial ports 1 4 respectively J11 J14 Serial port configuration Serial ports 5 8 respectively Diamond Systems Corporation Emerald MM 8Plus User Manual Page 7 Connectors This section describes the connectors on the Emerald MM 8Plus board PC 104 ISA Bus Connectors J1 and J2 carry the ISA bus signal Figure 3 shows the PC 104 A and B pin layout for J1 and the C and D pin layout for J2 These signals are not used to communicate with the CPU but are pass to other cards on the PC 104 stack Figure 3 PC 104 ISA Bus Connectors J1 J2
4. 5 6 7 or 8 data bits even odd or no parity Short circuit protection All outputs protected against continuous short circuit RS 232 mode Input impedance min Input voltage swing 30V max Display type 5V min 7V typical RS 422 RS 485 modes Differential input threshold 0 2V min 0 2V max Input impedance 12 min Input current 1 0mA max Vin 12V 0 8mA max VIN 7V Differential output voltage 2 0V min RL 50Q High low states differential output voltage symmetries 0 2V max Digital e No of I O lines 8 in 8 out Input voltage Low 0 3V min 0 8V max High 2 0V min 5 3V max Output voltage Low 0 0V min 0 4V max IOL 6mA max High 3 7V min 5 0V max IOH 4mA max General Dimensions 3 55 x 3 775 LxW PC 104 standard Power supply 5VDC 10 Current consumption 160mA typical all outputs unloaded Operating temperature 40 to 85 C Operating humidity 5 to 95 non condensing e PC 104 bus 8 bit and 16 bit bus headers are installed and used 16 bit header is used for interrupt levels only e header 2 40 position 2x20 025 square pin header on 1 centers Headers mate with standard ribbon cable IDC connectors Diamond Systems Corporation Emerald MM 8Plus User Manual Page 22 Additional Information Additional information can be found at the following websites 1 Diamond Systems Corporation http www diamondsyste
5. DIAMOND SYSTEMS CORPORATION Emerald MM 8Plus PC 104 Plus 8 Port Multi Protocol Serial Port Module User Manual v1 03 Copyright 2006 Diamond Systems Corporation 1255 Terra Bella Ave Mountain View CA 94043 Tel 650 810 2500 Fax 650 810 2525 www diamondsystems com Table of Contents 07 5 ep 4 DJescription and Features eierne a ia E 4 Block Diagrami E E 5 Board DescrIpliOl C e NL aah de danas fs ane i 6 Connector SUMUMALY ou iano Sex mo M rara ia 7 EN HEU T Connectors EM CS 8 PONOA ISA BUS ota EE eO DTE e mar pd RNC 8 9 VO Header CoDnlBetOES ER o Aqua ac agere ara 10 RS 232 Assignment etes puce en coe ee a qute 11 5 485 Pin Assignirfient cie i ele boa S S Rud Eau Ede 12 RS 422 Pini ASSIOPEIeTIE noa de Rd ented ie deett 13 Digital I O and Counter timer 14 Board Configufationi aghi ects EXAM GR P re pide D a 15 Serial Protocol SECIS CUOM AO A 15 5 23256 nth Vene a ERE Da X Or PROS Lee HUE ERE 16 15 422 SEIS CHOM sass ca i el ii 16 154
6. bus is essentially identical to the PCI Bus except for the physical design A single pin and socket connector is specified for the bus signals A 120 pin header J3 arranged as four 30 pin rows incorporates a full 32 bit 33MHz PCI Bus The additional pins on the PC 104 P us connectors are used as ground or key pins The female sockets on the top of the board enable stacking another PC 104 P us board top of the Emerald MM 8Plus board The Emerald MM 8Plus board should be the bottom board of a PC 104 Plus stackup In the connector J3 pinout table below the top corresponds to the left edge of the connector when the board is viewed from the primary side the side with the female end of the PC 104 P us connector and the board is oriented so that the PC 104 connectors are along the bottom edge of the board and the PC 104 P us connector is in the top of the Emerald MM 8Plus board Figure 4 PC 104 Plus PCI Connector J3 A B D 1 GND 5 0V KEY Reserved 5V ADOO 2 02 ADO1 5V 3_ ADO5 GND AD04 AD03 4 C BEO ADO7 GND ADO6 5 ADO9 ADO08 GND 6 AD11 VI O AD10 M66EN 7 AD14 AD13 GND AD12 8 3 3 C BE1 AD15 3 3V 9 SERR GND Reserved PAR 10 GND PERR 3 3V Reserved 11 STOP 3 3V LOCK GND 12 3 3 TRDY GND DESEL 13 FRAME GND IRDY 3 3V 14 GND AD16 3 3V C BE2 15 AD18 3 3V AD17 GND 16
7. 485 ecce dco PUR cs tee EX Ee ob e 17 POL SIobID SeleCllofi ici 18 EEPROM Programming caccia 19 Serial Communication nilo 20 Serial Port OBSraloriduoiote do cone bog eo Epio pura erede ome 20 Line Termination 20 Digital eee 21 rrt 22 Serial easet noc deletes acs 22 IIo 17 Ger ERN 22 General OR ARCA ILC X Ge RR DEO 22 Additional Informationi iaia lina 23 SUPP esp 24 Diamond Systems Corporation Emerald MM 8Plus User Manual Page 2 Figures Figure 1 EMM 8Plus Functional Block 5 Figure 2 EMM 8Plus Board 6 Figure 3 PC 104 ISA Bus Connectors J1 J2 essen 8 Figure 4 PC 104 Plus PCI Connector 3 2 111111111 9 Figure 5 I O Header Connectors 4 415 rera eaa de e den rh ct 10 Figure 6 RS 232 Protocol Selection 16 Figure 7 RS 422 Protocol Selection Options 16 Figure 8 RS 485 Protocol Selection Options 17 Figure 9 PCI Slot ID Selection i 18 Figure 10 Line Termination
8. 5 jumper selectable TTL available as a custom assembly configuration e Baud rates to 921 6Kbps in RS 232 or TTL mode 1 8432Mbps in RS 422 RS 485 modes Jumper selected protocol and line termination e EEPROM storage of configuration data for instant availability on power up e I O lines are short circuit protected e Eight digital I O lines with 5V logic e LED connected to digital I O line 0 Programmable counter timer with selectable clock source e Dual 40 pin I O headers 4 ports per header e 5 only operation e Extended temperature 40 to 85 C operation e PC 104 Plus form factor e Stackthrough PC 104 and PC 104 Plus connectors installed Refer to the Exar XR17D1581IV datasheet listed in the Additional Information section of this document for detailed information about using UART DIO and EEPROM functionality with the PC 104 Plus bus Diamond Systems Corporation Emerald MM 8Plus User Manual Page 4 Block Diagram Figure 1 shows the Emerald MM 8Plus functional blocks Figure 1 EMM 8Plus Functional Block Diagram Protocol Selection PCI Slot ID Jumpers Protocol Selection PLD 5 RS232 amp Transceivers Octal 5 UART 9 o 8 DIO 8 DIO Counter Timer J15 Ts 5 5 Li 38 a 14 7456 MHz Config Crystal EEPROM Diamond Systems Corporation Emerald MM 8Plus User Manual Page 5 Board Description Figure 2 shows the Emerald MM 8Plus board connectors and jumpers
9. AD21 AD20 GND AD19 17 3 3 AD23 AD22 3 3V 18 IDSELO GND IDSEL1 IDSEL2 19 AD24 C BE3 VI O IDSEL3 20 GND AD26 AD25 GND 21 AD29 5V AD28 AD27 22 5V AD30 GND AD31 23 REQO GND REQ1 24 GND REQ2 5V GNTO 25 GNT1 VI O GNT2 GND 26 5V CLKO GND CLK1 27 CLK2 5V CLK3 GND 28 GND INTD 5V RST 29 412 INTA INTB INTC 30 12V REQ3 GNT3 GND 3 3V KEY Diamond Systems Corporation Emerald MM 8Plus User Manual Page 9 On the Emerald MM 8Plus the octal UART is connected to the PCI bus and is powered by 5V with its PCI interface powered by the PCI bus VIO which can be 3 3V or 5V For this reason the connector is not keyed to prevent certain types of cards from being inserted I O Header Connectors Emerald MM 8Plus provides two identical 40 pin headers labeled J4 and J5 for the serial ports Four ports are contained on each header Figure 5 I O Header Connectors J4 J5 unus Connector J4 is for ports 1 4 and is located along the right side of the board J4 Port No Pin Assignment PORTI Pins 1 10 PORT2 Pins 11 20 PORT3 Pins 21 30 PORT4 Pins 31 40 Connector J5 is for ports 5 8 and is located along the left side of the board J5 Port No Pin Assignment PORTS Pins 1 10 PORT6 Pins 11 20 PORT7 Pins 21 30 PORTS Pins 31 40 Pin numbers are marked on the board to assist with connector orientation Diamon
10. D 1 3 4 TXD 1 TXD 5 3 4 TXD 5 NC 5 6 RXD 1 NC 5 RXD 5 RXD 1 7 8 RXD 5 7 8 GND 9 10 DIOO GND 9 10 DIO4 Port2 11 12 NC Port6 NC NC TXD 2 13 14 TXD 2 TXD 6 TXD 6 15 16 RXD 2 RXD 6 RXD 2 17 18 NC RXD 6 NC GND 19 20 DIO1 GND DIO5 Port3 21 22 Port7 NC NC 3 23 24 TXD 3 TXD 7 TXD 7 25 26 RXD 3 NC RXD 7 RXD 3 27 28 RXD 7 NC GND 29 30 DIO2 GND DIO6 Port4 NC 31 32 NC Port8 NC NC TXD 4 33 34 TXD 4 TXD 8 TXD 8 NC 35 36 RXD 4 RXD 8 RXD 4 37 38 NC RXD 8 NC GND 39 40 DIO3 GND DIO7 Signal Definition DE 9 Pin Direction TXD n TXD n Differential transmit data pin 2 pin 7 Output RXD n RXD n Differential receive data pin 4 pin 8 Input GND Ground pin 5 Signal Ground NC not connected DIOn Digital 3 Separate lines Diamond Systems Corporation Emerald MM 8Plus User Manual Page 13 Digital and Counter timer Connector Connector J15 is a 1x10 single row right angle connector that provides the following digital I O and counter timer signals CN DIO7 0105 DIO3 DIO1 Counter timer In DIO 6 DIO 4 DIO 2 DIO 0 Counter timer Out LED Out GND o A NI Oc A WwW N EN Signal Definition DIO 0 7 Digital I O programmable direction Counter timer In Counter timer input Counter timer Out Counter timer output LED Out User defined LED t
11. able results in an effective impedance of 60O Installing termination resistors at additional points in the network may cause overloading and failure of the line drivers due to the lower impedance caused by multiple resistors in parallel In RS 422 or RS 485 networks biasing resistors are normally installed at the endpoints of the cables to force a known inactive state on the lines to reduce noise and eliminate line float by pulling the Data line to 5V and the Data line to ground Emerald MM 8Plus provides 4 7KQ resistors for this purpose To enable resistor termination for a port install jumpers in the locations B of that port s corresponding configuration jumper block as shown above For RS422 networks the RX termination always has biasing resistors connected when used and the TX termination has the biasing resistor connections optional when used Note Biasing is only needed and should only be used at one of the cable endpoints Installing biasing resistors at additional points in the network may cause overloading and failure of the line drivers due to the lower impedance caused by multiple resistors in parallel Diamond Systems Corporation Emerald MM 8Plus User Manual Page 15 RS 232 Selection Figure 6 shows the J7 through J14 jumper settings to select the RS 232 protocol No pins are jumpered Figure 6 RS 232 Protocol Selection RS232 2 23 RS 422 Selection Figure 7 shows the J7 through J14 jumper settings to
12. and bias resistors below Figure 10 Line Termination Schematics 2 si 2 N Out 5 b 2 2 gt a 5 gt 9 lt 2 lut Receive Termination TransmitTermination Diamond Systems Corporation Emerald MM 8Plus User Manual Page 20 Digital I O and Counter Timer The XR17D158 UART offers 8 built in digital I O lines and a programmable counter timer The 8 DIO lines and the counter timer signals are brought out to an 8 pin connector on the lower edge of the board The DIO and counter timer signals are 3 3V nominal logic signals and have ESD protection The 8 DIO lines are also available on the 8 extra pins on the two serial I O connectors to provide compatibility with EMM 8P The user must be made aware of the limitation that only one source can be used for input either the serial port connector or the dedicated DIO connector The counter timer s output is multiplexed under software control to DIO 0 The counter timer s input is programmable for either an internal clock or an external signal The external signal is available on a pin on the digital I O connector DIO 0 has an LED connected to it for use in displaying board activity or health status Diamond Systems Corporation Emerald MM 8Plus User Manual Page 21 Specifications Serial Ports e No of serial ports 8 e Protocols RS 232 RS 422 RS 485 Maximum baud rate 921 6Kbps RS 232 1 832Mbps RS 422 RS 485 Communications parameters
13. d Systems Corporation Cable Assembly Number C DB9M 4 connects this header to four DE 9 Male connectors for direct connection to RS 232 C signaling The following tables list the signals for the appropriate mode of operation as well as the DE 9 pin numbers to which these signals are wired Diamond Systems Corporation Emerald MM 8Plus User Manual Page 10 RS 232 Pin Assignment J4 DCD1 1 2 DSR1 5 a DSR5 RXD1 3 4 RTS1 RXD5 3 4 RTS5 TXD1 5 6 CTS1 TXD5 5 5 DTR1 7 8 IRM 5 7 8 RIS GND 9 10 DIOO GND 9 10 DIO4 Port2 DCD2 11 12 DSR2 DCD6 DSR6 RXD2 13 14 RTS2 RXD6 RTS6 TXD2 15 16 CTS2 TXD6 CTS6 DTR2 17 18 RI2 DTR6 RI6 19 20 0101 GND DIO5 Port3 DCD3 21 22 DSR3 Port DCD7 DSR7 RXD3 23 24 RTS3 RXD7 RTS7 TXD3 25 26 CTS3 TXD7 CTS7 27 28 DTR7 RI7 GND 29 30 DIO2 GND DIO6 Port4 DCD4 31 32 DSR4 Port8 DCD8 DSR8 RXD4 33 34 RTS4 RXD8 RTS8 TXD4 35 36 54 TXD8 CTS8 DTR4 37 38 RI4 DTR8 RI8 GND 39 40 DIO3 GND DIO7 Signal Definition DE 9 Pin Direction DCDn Data Carrier Detect pin 1 Input DSRn Data Set Ready pin 6 Input RXDn Receive Data pin 2 Input RTSn Request to Send pin 7 Output TXDn Transmit Data pin 3 Output CTSn Clear to Send pin 8 Input DTRz Data Terminal Ready pin 4 Output RIn Ring Indicator pin 9 In
14. de the receiver and transmitter are enabled alternately so that no echo is received during transmission The output transceiver can be automatically enabled disabled by setting a control bit in the modem status register MSR of the XR17D158 This causes RTS to automatically turn on before transmission starts and turn off after transmission ends Use MSR bits to program the transmitter disable delay after last bit transmission The RS 232 and RS 422 485 transceivers have built in ESD protection The TTL transceivers do not have ESD protection however they serve as protection for the UART in TTL mode Line Termination In RS 422 and RS 485 modes 150 ohm 0 25 watt termination resistors may be connected across the differential transceiver lines with jumpers One for transmit pair one for receive pair in RS 422 one only for RS 485 All UART port inputs have pull up pull down resistors to force the inputs to their inactive state when the RS 422 or RS 485 protocol is selected All TTL inputs have pull up pull down resistors to force them to their inactive state when unconnected All RS 422 485 inputs have jumper selectable pull up pull down bias resistors to force them to their inactive states when unconnected The pull up pull down resistors must be high enough to prevent a false signal due to the voltage divider resulting from the pull up pull down and line termination resistors 50mV threshold See the example schematics for line termination
15. ms com 2 Datasheet XR17D158 Universal 3 3V and 5V PCI Bus Octal UART Exar Corporation August 2005 pdf Diamond Systems Corporation Emerald MM 8Plus User Manual Page 23 Technical Support For technical support please email support diamondsystems com or contact Diamond Systems Corporation technical support at 1 650 810 2500 Diamond Systems Corporation Emerald MM 8Plus User Manual Page 24
16. put GND Ground pin 5 Signal Ground DIOn Digital I O Diamond Systems Corporation Emerald MM 8Plus User Manual Page 11 RS 485 Pin Assignment J4 J5 NC 1 2 NC Ports NC 1 2 TXD RXD 1 3 4 TXD RXD 1 TXD RXD 5 3 4 TXD RXD 5 5 6 NC rea NC 8 NC 7 8 GND 9 10 DIOO GND 9 10 DIO4 Port2 NC 11 12 INC Port6 NC TXD RXD 2 13 14 TXD RXD 2 RXD6 TXD RXD 6 TXD RXD 6 NC 15 16 NC NC NC NC 47 18 NC NC GND 19 20 DIO1 GND DIO5 Port3 NC 21 22 Port7 NC TXD RXD 3 23 24 TXD RXD 3 TXD RXD 7 TXD RXD 7 NC 25 26 NC NC NC 27 28 NC NC GND 29 30 DIO2 GND DIO6 NC 31 32 Por NC TXD RXD 4 33 34 TXD RXD 4 TXD RXD 8 TXD RXD 8 NC 35 36 NC NC NC NC 37 38 NC NC NC GND 39 40 DIO3 GND DIO7 Signal Definition DE 9 Pin Direction TXD RXD n Differential Transceiver Data HIGH pin 2 bi directional TXD RXD n Differential Transceiver Data LOW pin 7 bi directional GND Ground pin 5 Signal Ground NC not connected DIOn Digital I O s Diamond Systems Corporation Emerald MM 8Plus User Manual Page 12 RS 422 Pin Assignment J4 J5 Port NC 1 2 Ports NC 1 2 TX
17. select the RS 422 protocol options Figure 7 RS 422 Protocol Selection Options TXTERM TXTERM RXTERM RXTERM TXTERM TXBIAS RXBIAS RXBIAS T 56 T T B B E E B R o o R R 66 R R o o R 1 o o 1 o ol 1 2 o ol 2 o 91 2 E Diamond Systems Corporation Emerald MM 8Plus User Manual Page 16 RS 485 Selection Figure 8 shows the J7 through J14 jumper settings to select the RS 485 protocol options Figure 8 RS 485 Protocol Selection Options NOECHO ECHO NOECHO TERM ECHO TERM NOECHO TERM BIAS TERM BIAS T T B o o 8 B o 0 8 o B B 0 8 R R R o R 1 ool 1 2 o 0 2 2 o o 2 2 OF OF E Diamond Systems Corporation Emerald MM 8Plus User Manual Page 17 PCI Slot ID Selection Jumper block J6 sets the PCI slot ID using two jumpers as shown in Figure 9 Take care in selecting the correct PCI slot to avoid resource conflicts in the software driver Figure 9 PCI Slot ID Selection Jumper Slot0 Slot 1 Slot2 Slot Diamond Systems Corporation Emerald MM 8Plus User Manual Page 18 EEPROM Programming Emerald MM 8P has a 256 byte EEPROM of which the lowest 64 bytes are addressable The first eight locations are used to store the PCI vendor and device IDs and the remaining bytes are available for
18. user defined functions EEPROM Address Function 0 PCI Vendor ID low byte 1 PCI Vendor ID high byte 2 PCI Device ID low byte 3 PCI Device ID high byte 4 PCI Subsystem Vendor ID low byte 5 PCI Subsystem Vendor ID high byte 6 PCI Subsystem Device ID low byte 7 PCI Subsystem Device ID high byte 8 6 User defined Refer to the Exar Corporation datasheet for the XR17D158 UART listed in the Additional Information section of this document for EEPROM programming procedures Diamond Systems Corporation Emerald MM 8Plus User Manual Page 19 Serial Communication Eight serial ports are provided by the XR17D158 octal PCI UART chip The input clock is driven by a 14 7456MHz crystal Serial Port Operation Each port can be independently configured for RS 232 RS 422 RS 485 or TTL interface using jumpers or assembly options RS 232 and TTL are mutually exclusive due to signal level incompatibility If one transceiver is installed for a port the other set is not The standard configuration is RS 232 422 485 transceivers installed Ports 1 through 4 or 5 through 8 can be configured for TTL line levels as a custom assembly option Contact Diamond Systems for custom configuration options Transceiver control is managed using the eight identical 2x8 jumper blocks J7 J14 In RS 485 mode both local ECHO and NO ECHO modes are supported In local echo mode the receiver is always on In no echo mo
19. ypically for board status GND Ground Diamond Systems Corporation Emerald MM 8Plus User Manual Page 14 Board Configuration The board provides jumper blocks to configure the following functions e Serial port protocol RS 232 422 485 TTL 2 positions for each port e RS 422 485 RX and TX termination 4 positions for each port e RS 485 echo yes no per port 1 position for each port e PCI slot ID 2 positions for slot 0 3 selection For hardwired configuration locations are provided on the PCB for 0 ohm resistors to be installed to replace each valid jumper position Serial Protocol Selection Jumper blocks J7 through J14 are used to select the protocol for each serial port as shown in the table below Each jumper block configures one port and each port may have its protocol set independently of the other ports Jumper Port J7 1 J8 J9 J10 Jil J12 J13 J14 NIAI Nn AJ UOJN In RS 422 or RS 485 networks termination resistors are normally installed at the endpoints of the cables to minimize reflections on the lines Emerald MM 8Plus provides 1500 resistors for this purpose To enable resistor termination for a port install jumpers in the locations T and R of that port s corresponding configuration jumper block as shown below Note Termination is only needed and should only be used at the cable endpoints Enabling these termination resistors at each end of the c
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