Design

Serial Interface Pinouts


 
RS-232 Data Port Pin Connections  (Cable Part #CMF000)
Signal Name Electrical Desc DB-25 Pin No.
Earth Ground   1
Signal Ground   7
RTS RS-232/V.28 4
CTS RS-232/V.28 5
DTR RS-232/V.28 20
DSR RS-232/V.28 6
DCD RS-232/V.28 8
RI (Ring) RS-232/V.28 22
TxD RS-232/V.28 2
RxD RS-232/V.28 3
TxCLK RS-232/V.28 15
RxCLK RS-232/V.28 17
AuxCLK RS-232/V.28 24



V.35 Data Port Pin Connections (Cable Part #2534PC)

(GT Family and PCMCIA Adapters)

Signal Name Electrical Desc DB-25 Pin No. V.35 Block Pin No.
Earth Ground   1 A
Signal Ground   7 B
RTS RS-232/V.28 4 C
CTS RS-232/V.28 5 D
DTR RS-232/V.28 20 H
DSR RS-232/V.28 6 E
DCD RS-232/V.28 8 F
RI (Ring) RS-232/V.28 22 ---
TxD+ RS-422/V.11 2 P
TxD- RS-422/V.11 14 S
RxD+ RS-422/V.11 3 R
RxD- RS-424/V.11 16 T
TxCLK+ RS-422/V.11 15 Y
TxCLK- RS-422/V.11 12 AA
RxCLK+ RS-422/V.11 17 V
RxCLK- RS-422/V.11 9 X
AuxCLK+ RS-422/V.11 24 U
AuxCLK- RS-422/V.11 11 W

 

V.35 Data Port Pin Connections (Cable Part #2534FM)

(Legacy SyncLink Adapters)

Signal Name Electrical Desc DB-25 Pin No. V.35 Block Pin No.
Earth Ground   1 A
Signal Ground   7 B
RTS RS-232/V.28 4 C
CTS RS-232/V.28 5 D
DTR RS-232/V.28 20 H
DSR RS-232/V.28 6 E
DCD RS-232/V.28 8 F
RI (Ring) RS-232/V.28 22 ---
TxD+ RS-422/V.11 2 P
TxD- RS-422/V.11 14 S
RxD+ RS-422/V.11 3 R
RxD- RS-424/V.11 16 T
TxCLK+ RS-422/V.11 15 Y
TxCLK- RS-422/V.11 13 AA
RxCLK+ RS-422/V.11 17 V
RxCLK- RS-422/V.11 19 X
AuxCLK+ RS-422/V.11 24 U
AuxCLK- RS-422/V.11 23 W

 



RS-449/RS-530 Data Port Pin Connections (Cable Part #2537FM)
Signal Name Electrical Desc DB-25 (RS-530) Pin No. DB-37 (RS-449) Pin No.
Earth Ground   1 1
Signal Ground   7 19
RTS+ RS-422/V.11 4 7
RTS- RS-422/V.11 19 25
CTS+ RS-422/V.11 5 9
CTS- RS-422/V.11 13 27
DTR+ RS-422/V.11 20 12
DTR- RS-422/V.11 23 30
DSR+ RS-422/V.11 6 11
DSR- RS-422/V.11 22 29
DCD+ RS-422/V.11 8 13
DCD- RS-422/V.11 10 31
TxD+ RS-422/V.11 2 4
TxD- RS-422/V.11 14 22
RxD+ RS-422/V.11 3 6
RxD- RS-424/V.11 16 24
TxCLK+ RS-422/V.11 15 5
TxCLK- RS-422/V.11 12 23
RxCLK+ RS-422/V.11 17 8
RxCLK- RS-422/V.11 9 26
AuxCLK+ RS-422/V.11 24 17
AuxCLK- RS-422/V.11 11 35


 
X.21 Data Port Pin Connections
Signal Name Electrical Desc DB-25 (RS-530) Pin No. DB-15(X.21)Pin No.
Earth Ground   1 1
Signal Ground   7 8
RTS+ V.11 4 NC
RTS- V.11 19 NC
CTS+ V.11 5 NC
CTS- V.11 13 NC
DTR+ (C+) V.11 20 3
DTR- (C-) V.11 23 10
DSR+ (I+) V.11 6 5
DSR- (I-) V.11 22 12
DCD+ (I+) V.11 8 5
DCD- (I-) V.11 10 12
TxD+ (T+) V.11 2 2
TxD- (T-) V.11 14 9
RxD+ (R+) V.11 3 4
RxD- (R-) V.11 16 11
TxCLK+ (S+) V.11 15 6
TxCLK- (S-) V.11 12 13
RxCLK+ (S+) V.11 17 6
RxCLK- (S-) V.11 9 13
AuxCLK+ (X+) V.11 24 7
AuxCLK- (X-) V.11 11 14


SyncLink GT PC/104+ 26-pin Header Connections 
Connector P3 is a right angle 0.100 inch spacing header (2 x 13) with latches/ejectors. A 1 foot ribbon cable with a 2x13 socket on one end and a DB-25 connector on the other end is included with each adapter. The DB-25 pinout is the same as the GT PCI adapter DB-25.
(NC=No Connect)

P3 Orientation (Facing Pins):
|-----Key------|
|25...........1|
|26...........2|
==================== PCB
Header Pin No. RS-422/485/530 Signal RS-232 Signal V.35 Signal
1 NC NC NC
2 TxD- NC TxD-
3 TxD+ TxD TxD+
4 TxCLK+ TxCLK TxCLK+
5 RxD+ RxD RxD+
6 RxD- NC RxD-
7 RTS+ RTS RTS
8 RxCLK+ RxCLK RxCLK+
9 CTS+ CTS CTS
10 LL LL LL
11 DSR+ DSR DSR
12 RTS- NC NC
13 Ground Ground Ground
14 DTR+ DTR DTR
15 DCD+ DCD DCD
16 RL RL RL
17 RxCLK- NC RxCLK-
18 DSR- NC NC
19 DCD- NC NC
20 DTR- NC NC
21 AuxCLK- NC AuxCLK-
22 AuxCLK+ AuxCLK AuxCLK+
23 TxCLK- NC TxCLK-
24 NC NC NC
25 CTS- NC NC
26 NC NC NC