
Dumb Terminal Adapter 55
Dumb Terminal Adapter
Table 26 describes dumb terminal adapter pinouts.
Table 26 Dumb Terminal Adapter Pinouts
| Signal | ||
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| 1 | 8 | DCD | 
| 2 | 6 | DSR | 
| 3 | 20 | DTR | 
| 4 | 7 | GND | 
| 5 | 2 | TxD | 
| 6 | 3 | RxD | 
| 7 | 4 | RTS | 
| 8 | 5 | CTS | 
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| E1 Cable | Table 27 describes E1 cable pinouts. In this table, Tx = transmit and Rx = receive. | 
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 | These markings on  | 
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 | should be connected to the peer's “Tx” and “Rx”. | 
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 | Table 27 E1 Cable Pinouts | 
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 | BNC  | 
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 | coaxial cable) | twisted pair | 
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| 9 | Tx Tip | Tx Tip | 1 | Tx Tip | 
| 2 | Tx Ring | Tx Ring | 2 | Tx Ring | 
| 10 | Tx Shield | - | 3 | Tx Shield | 
| 8 | Rx Tip | Rx Tip | 4 | Rx Tip | 
| 15 | Rx ring | Rx Ring | 5 | Rx Ring | 
| 7 | Rx Shield | - | 6 | Rx Shield | 
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| T1 Cable | Table 28 describes T1 cable pinouts. | 
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 | Table 28 T1 Cable Pinouts | 
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 | h Shielded | 
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 | Network Cable Signal | Description | ||
| 1 | White (Orange) | Rx | Ring | 1 | 
| 2 | Orange | Rx | Tip | 2 | 
| 3 | White (Green) | - | - | 3 | 
| 4 | Blue | Tx | Ring | 4 | 
| 5 | White (Blue) | Tx | Tip | 5 | 
| 6 | Green | - | - | 6 | 
| 7 | White (Brown) | - | - | 7 | 
| 8 | Brown | - | - | 8 | 
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