CTC Union SHRM03b TDM Series, User Manual

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5.2 Serial Interface Pin Assignments
The table below displays Serial Interface Pin Assignments for the DCE
Mode
.
Function Abbrev. Direction
RS-530
DB-25(F)
V.35
M.34(F)
X.21
DB-15(F)
Frame Ground FG N/A 1 A 1
Transmit Data TD Input 2 P 2
Receive Data RD Output 3 R 4
Request to Send RTS Input 4 C 3
Clear to Send CTS Output 5 D
Data Set Ready DSR Output 6 E
Signal Ground SG N/A 7 B 8
Data Carrier Detect DCD Output 8 F 5
Secondary Receiver
Clock
(S)RC Output 9 X 13
Secondary Data
Carrier Detect
(S)DCD Output 10 12
Secondary External
Transmitter Clock
(S)ETC Input 11 W 7
Secondary Transmitter
Clock
(S)TC Output 12 AA
Secondary Clear to
Send
(S)CTS Output 13
Secondary Transmit
Data
(S)TD Input 14 S 9
Transmitter Clock TC Output 15 Y
Secondary Receive
Data
(S)RD Output 16 T 11
Receiver Clock RC Output 17 V 6
Local Loopback 18
Secondary Request to
Send
(S)RTS Input 19 10
Data Terminal Ready DTR Input 20 H
Remote Loopback 21
Secondary Data Set (S)DSR Output 22