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