Db25 Connector, Terminal Interface - Black Box MT160A Manual

MicroCSU/DSU Cards and MicroRacks
M/34 Connector, Terminal Interface (continued)
U
V
W
X
Y
AA
B.3 DB25 Connector, Terminal Interface
Pins are assigned according to RS-232E and EIA-530 standards.
Pin #
1
2
3
4
5
6
7
8
9
11
12
14
15
16
17
18
20
21
24
25
44
XTC
RC
XTC/
RC/
TC
TC/
Signal
Frame Ground
TD
RD
RTS
CTS
DSR
SGND (Signal Ground)
CD
/RC
/XTC
/TC
/TD
TC
/RD
RC
LL (Local Loop)
DTR
RL (Remote Loop)
XTC
TM (Test Mode)