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Appendix A: Interfaces Pin Assignment
A-4
Serial Port Connectors Pin out Assignment
Figure A-4: RS-530 Pin out (DB-25)
Figure A-5: RS-449 Pin out (DB-37)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Shield
Transmitted Data (A)
Received Data (A)
Request to Send (A)
Clear to Send (A)
DCE Ready (A)
Signal Ground
Clear to Send (B)
Received Line Signal Detector (A)
Receiver Signal Element Timing (B)
Received Line Signal Detector (B)
Ext. Transmit Signal Element Timing (B)
Transmit Signal Element Timing (B)
Common
DTE
DCE
DTE
DCE
DCE
Common
DCE
Return
Return
Return
Return
Return
Return
DCE
Return
DCE
DTE
Return
DTE
DTE
Return
Return
DTE
DCE
Transmitted Data (B)
Received Data (B)
Local Loopback
Request to Send (B)
DTE Ready (A)
Remote Loopback
DCE Ready (B)
DTE Ready (B)
Test Mode
Transmit Signal Element (A)
Receiver Signal Element Timing (A)
Ext. Transmit Element Timing (A)
PIN
NO.
PIN
NO.
SIGNAL
DESIGNATION
SIGNAL
DESIGNATION
SOURCE
SOURCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Shield
Signal Rate Indicator
Send Data (A)
Send Timing (A)
Receive Data (A)
Request to Send (A)
Receive Timing (A)
Clear to Send (A)
Local Loopback
Data Mode (A)
Terminal Ready (A)
Receiver Ready (A)
Remote Loopback
Incoming Call
Select Frequency
Terminal Timing (A)
Test Mode
Signal Ground
KG Resync (A)
Common
DCE
-
DTE
DCE
DCE
DTE
DCE
DCE
DTE
DCE
DTE
DCE
DTE
DCE
DTE
DTE
DCE
Common
Common
-
Return
Return
Return
Return
Return
Return
DTE
DTE
DCE
DTE
DCE
Common
Return
Return
Return
Return
Receive Common
KG Resync (B)
Send Data (B)
Send Timing (B)
Receive Data (B)
Request to Send (B)
Receive Timing (B)
Clear to Send (B)
Terminal in Service
Data Mode (B)
Terminal Ready (B)
Receiver Ready (B)
Select Standby
Signal Quality
New Signal
Terminal Timing (B)
Standby Indicator
Send Common
PIN
NO.
PIN
NO.
SIGNAL
DESIGNATION
SIGNAL
DESIGNATION
SOURC
E
SO
UR
C
E