Microgate SyncLink GT2E Hardware User Manual Download Page 13

RS-422/RS-449/RS-485/RS-530 

The RS-422 and RS-485 standards describe differential electrical signals but not connector or pin 
assignments. The RS-530 and RS-449 standards define specific connectors and pin assignments using 
differential signals. The differential signals on the card meet both RS-422 and RS-485 electrical 
specifications. 

RS-530 uses differential signals on a DB-25 connector. The adapter DB-25 connector follows this 
standard when the port jumpers are installed for RS-422/485. Use any straight through 25 conductor 
DB-25M to DB-25F cable (such as MicroGate Part # CMF000) to connect the adapter to RS-530 
communications equipment. 

RS-449 uses differential signals on a DB-37 connector. To use this standard install the RS-422/485 
jumpers for the port and use the MicroGate RS-449 cable (Part # 2537FM). 

The maximum data rate supported by the adapter when using RS-530 or RS-449 is 10Mbps. Cable length 
and signal loading may reduce the maximum usable data rate from this value. 

RS-422/RS-530/RS-449 Male DTE 

Signal Name 

Electrical Desc 

DB25 

RS-530 

Pin # 

DB37 

RS-449 

Pin # 

Direction 

Earth/Shield Ground 

 

 

TxD (-/A), Transmit Data 

RS-422/V.11 

Output 

RxD (-/A), Receive Data 

RS-422/V.11 

Input 

RTS (-/A), Request to Send 

RS-422/V.11 

Output 

CTS (-/A), Clear to Send 

RS-422/V.11 

Input 

DSR (-/A), Data Set Ready 

RS-422/V.11 

11 

Input 

Signal Ground 

 

19 

 

DCD (-/A), Data Carrier Detect 

RS-422/V.11 

13 

Input 

RxC (+/B), Receive Clock 

RS-422/V.11 

26 

Input 

DCD (+/B), Data Carrier Detect 

RS-422/V.11 

10 

31 

Input 

AuxClk (+/B), DTE Clock Output 

RS-422/V.11 

11 

35 

Output 

TxC (+/B), Transmit Clock 

RS-422/V.11 

12 

23 

Input 

CTS (+/B), Clear to Send 

RS-422/V.11 

13 

27 

Input 

TxD (+/B), Transmit Data 

RS-422/V.11 

14 

22 

Output 

TxC (-/A), Transmit Clock 

RS-422/V.11 

15 

Input 

RxD (+/B), Receive Data 

RS-422/V.11 

16 

24 

Input 

RxC (-/A), Receive Clock 

RS-422/V.11 

17 

Input 

LL, Local Loopback Control 

RS-232/V.28 

18 

10 

Output 

RTS (+/B), Request to Send 

RS-422/V.11 

19 

25 

Output 

DTR (-/A), Data Terminal Ready 

RS-422/V.11 

20 

12 

Output 

RL, Remote Loopback Control 

RS-232/V.28 

21 

14 

Output 

DSR (+/B), Data Set Ready 

RS-422/V.11 

22 

29 

Input 

DTR (+/B), Data Terminal Ready 

RS-422/V.11 

23 

30 

Output 

AuxClk (-/A), DTE Clock Output 

RS-422/V.11 

24 

17 

Output 

Summary of Contents for SyncLink GT2E

Page 1: ...Serial Adapter Hardware User s Manual MicroGate Systems Ltd http www microgate com MicroGate and SyncLink are registered trademarks of MicroGate Systems Ltd Copyright 2008 2020 MicroGate Systems Ltd A...

Page 2: ...V 28 5 Differential Signals RS 422 RS 485 V 11 5 Clock Polarity 6 Serial Interface Selection 7 Differential Input Termination 8 2 Wire Mode Jumpers 9 Serial Connector Pin Assignments 10 RS 232 11 V 35...

Page 3: ...CTS DCD RI LL RL Specifications MicroGate FPGA serial controller 2 or 4 ports PCI Express x1 Bus Master DMA data transfer Operating Temperature Range 0C to 70C standard 40C to 85C optional Storage Tem...

Page 4: ...cludes two Y cables for a total of 4 ports Each branch of a Y cable is labeled with a port number The Y cable labeled 1 and 2 should be installed on the 60 pin connector closest to the PCI Express edg...

Page 5: ...aximum supported data rate Differential Signals RS 422 RS 485 V 11 SyncLink differential signals are compatible with RS 422 RS 485 and ITU V 11 standards Each signal has two connector pins named A and...

Page 6: ...ff On to Off edge falling edge receive data sample bit center Off to On edge rising edge transmit data transition bit edge RS 422 RS 485 V 11 Differential Signals 200mV to 6V 2V typical clock on 200mV...

Page 7: ...e connected communications equipment Interface selection is preset at the factory as specified by the ordering code The selection may be changed by moving the jumpers to the desired header row as desc...

Page 8: ...not affect single ended RS 232 V 28 inputs Termination increases signal reliability at high speeds generally 1Mbps or more At high speeds inputs at each end of a cable should be terminated For a mult...

Page 9: ...are located next to the serial connector and are labeled with the port number and the text 2 WIRE WARNING The 2 wire jumpers should never be installed on ports configured for RS 232 to avoid damaging...

Page 10: ...ectors The assignment of signals to the connector pins is controlled by the interface selection jumpers on the card For interface types that use a connector different than DB 25 an adapter cable purch...

Page 11: ...alue RS 232 DB 25 Male DTE Signal Name Electrical Desc Pin Direction Earth Shield Ground 1 TxD Transmit Data RS 232 V 28 2 Output RxD Receive Data RS 232 V 28 3 Input RTS Request to Send RS 232 V 28 4...

Page 12: ...11 2 P Output RxD A Receive Data RS 422 V 11 3 R Input RTS Request to Send RS 232 V 28 4 C Output CTS Clear to Send RS 232 V 28 5 D Input DSR Data Set Ready RS 232 V 28 6 E Input Signal Ground 7 B DC...

Page 13: ...s value RS 422 RS 530 RS 449 Male DTE Signal Name Electrical Desc DB25 RS 530 Pin DB37 RS 449 Pin Direction Earth Shield Ground 1 1 TxD A Transmit Data RS 422 V 11 2 4 Output RxD A Receive Data RS 422...

Page 14: ...Figure 7 RS 530 Cable Part CMF000 Figure 8 RS 449 Cable Part 2537FM...

Page 15: ...data rate from this value X 21 Male DTE Signal Name Electrical Desc DB25 Pin DB15 Pin Direction Earth Shield Ground 1 1 T A Transmit Data RS 422 V 11 2 2 Output R A Receive Data RS 422 V 11 3 4 Input...

Page 16: ...rial API Windows and Linux Each signal can be configured to be either an input or an output Inputs can be monitored and outputs can be controlled DC GPIO Specifications Vil input low 0 5V min 0 8V max...

Page 17: ...as a total of 12 general purpose I O signals GPIO 0 to GPIO 11 By default on power up all GPIO signals are configured as inputs direction control 0 Refer to the serial API documentation for details on...

Page 18: ...to the documentation available from IDT www idt com for details on programming the synthesizer An IDT supplied program Versaclock generates programming data 132 bit value for a specific frequency outp...

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