Patton electronic 2603, 2621, 2635 manual Serial port, 35 M/34 and DB-25 Connector

Models 2603, 2621, and 2635 Getting Started Guide D • IPLink Physical Connectors

Serial port

V.35 (M/34 and DB-25 Connector)

The Model 2635 has a DB-25 connector for the V.35 interface. table 9 provides the pinouts for the M/34 and DB-25 connectors.

Table 9. V.35 pinout for M/34 & DB-25 connectors

M/34	DB-25	Signal Name	Direction
Pin No.	Pin No.
A	1	Frame/Chassis	n/a
		Ground
P	2	TD-a	from DTE
R	3	RD-a	to DTE
C	4	RTS	from DTE
D	5	CTS	to DTE
E	6	DSR	to DTE
B	7	Signal Ground	n/a
F	8	CD	to DTE
X	9	RC-b	to DTE
	10
W	11	XTC-b	from DTE
AA	12	TC-b	to DTE
	13
S	14	TD-b	from DTE
Y	15	TC-a	to DTE
T	16	RD-b	to DTE
V	17	RC-a	to DTE
L	18	Local Loopback	to DTE
	19
H	20	DTR	from DTE
N	21	Remote Loopback	to DTE
	22
	23
U	24	XTC-a	from DTE
M	25	Test Mode	to DTE

Serial port 126