RS442 & RS530 Link Pinouts
The connector shown here and pinouts described here correspond to the connector labeled “RS530” on the back of the P1705 & P1730.
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| 13 | 1 |
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| DB25 Female DTE |
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| 25 | 14 |
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| Direction | |
Contact |
| Circuit |
| To | From |
Number | Circuit | Name |
| DCE | DCE |
1 | Shield | Protective Ground |
| NA | |
2 | BA (A) | Transmitted Data |
| X |
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3 | BB (A) | Received Data |
|
| X |
4 | CA (A) | Request to Send |
| X |
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5 | CB (A) | Clear to Send |
|
| X |
6 | CC (A) | Data Set Ready |
|
| X |
7 | AB | Signal Ground |
| NA | |
8 | CF (A) | Received Line Signal Detector |
|
| X |
9 | DD (B) | Receive Signal Element Timing (DCE Source) |
| X | |
10 | CF (B) | Received Line Signal Detector |
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| X |
11 | DA (B) | Transmit Signal Element Timing (DTE Source) | X |
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12 | DB (B) | Transmit Signal Element Timing (DCE Source) |
| X | |
13 | CB (B) | Clear to Send |
|
| X |
14 | BA (B) | Transmitted Data |
| X |
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15 | DB (A) | Transmit Signal Element Timing (DCE Source) |
| X | |
16 | BB (B) | Received Data |
|
| X |
17 | DD (A) | Receive Signal Element Timing (DCE Source) |
| X | |
18 | LL | Local Loopback |
| X |
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19 | CA (B) | Request to Send |
| X |
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20 | CD (A) | Data Terminal Ready |
| X |
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21 | RL | Remote Loopback |
| X |
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22 | CC (B) | Data Set Ready |
|
| X |
23 | CD (B) | Data Terminal Ready |
| X |
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24 | DA (A) | Transmit Signal Element Timing (DTE Source) | X |
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25 |
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Figure D-7 RS530 Link Pinouts
The connecting cable must be a shielded cable.
Circuits which are paired (contain an (A) and (B) reference) should be connected to twisted pairs within the connecting cable.