User manual

Appendix B. Pinouts
B-2 ATLAS Quad USSI Module User Manual 61200261L1-1
Table B-2. Pinout for EIA-530A Cable
Pin Signal Description Pin Signal Description
1
Shield (Ground)
13
Clear to Send (B)
2
Transmit Data (A)
14
Transmit Data (B)
3
Received Data (A)
15
Transmit Clock (A)
4
Request to Send (A)
16
Received Data (B)
5
Clear to Send (A)
17
Receive Clock (A)
6
DCE Ready (A)
18
Local LoopBack*
7
Signal Ground
19
Request to Send (B)
8
Carrier Detect (A)
20
DTE Ready (A)
9
Received Clock (B)
21
Remote Loopback*
10
Carrier Detect (B)
22
Ring Indicator
11
Ext. Transmit Clock (B)
23
Signal Ground
12
Transmit Clock (B)
24
Ext. Transmit Clock (A)
25
Test Mo de *
* Ignored by Quad USSI Module
Table B-3. Pinout for RS-449 Cable
Pin Signal Description Pin Signal Description
1
Shield (Ground)
19
Signal Ground
2
Signaling Rate Indicator*
20
Receive Common*
3
Not Used
21
Not Used
4
Transmit Data (A)
22
Transmit Data (B)
5
Transmit Clock (A)
23
Transmit Clock (B)
6
Received Data (A)
24
Receive Data (B)
7
Request to Send (A)
25
Request to Send (B)
8
Receive Clock (A)
26
Receive Clock (B)
9
Clear to Send (A)
27
Clear to Send (B)
10
Local Loopback*
28
Terminal in Service*
11
DCE Ready (A)
29
DCE Ready (B)
12
DTE Ready (A)
30
DTE Ready (B)
13
Carrier Detect (A)
31
Carrier Detect (B)
14
Remote Loopback*
32
Select Standby*
15
Ring Indicator
33
Signal Quality*
16
Select Frequency*
34
New Signal*
17
Ext. Transmit Clock (A)
35
Ext. Transmit Clock (B)
18
Test Mo de*
36
Standby/Indicator*
37
Send Common*
* Ignored by Quad USSI Module