Cabling
Specifications
B-3
DB25 RS-530 Interface Cabling (
PORT
4
and
PORT
5
- Optional Module)
The OM 1000 is configured as a DTE.
Connector type
DB25 male shielded connector with screw locks
Cable type
25 conductor shielded
Bit rate
56 K maximum async/2 Mbps sync
Async: 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, or
57,600 bps
Sync: 300 through 2,048,000 bps (Refer to Appendix A,
“Specifications”)
Table B-3
DB25 RS-530 interface connector pinout
P i n N u m b e r
S i g n a l
D i r e c t i o n
D e s c r i p t io n
1
SHIELD Shield Chassis
ground
2
BA
+
Out
Transmit data
+
3
BB
+
In
Receive data
+
4
CA
+
Out
Request to send
+
5
CB
+
In
Clear to send
+
6
CC In DCE
ready
7
AB Ground
Chassis
ground
8
CF
+
In
Receive line signal detect
+
9
DD In Receiver
clock
10
CF
In
Receive line signal detect
11
DA No
connection
12
DB
−
In
Transmit clock
−
13
CB
−
In
Clear to send
−
14
BA
−
Out
Transmit data
−
15
DB In Transmit
clock
16
BB
−
In
Receive data
−
17
DD In Receiver
clock
18
LL Out
Local
loopback
19
CA
−
Out
Request to send
−
20
CD Out
DTE
ready
21
RL Out
Remote
loopback
22
CE In Ring
indicator
23
AC Gnd
Chassis
24
DA Out
Transmit
25
TM In Test
mode
OM 1000 Installation and Operation Manual