14 | O_TXD/RXD- |
| 9 | TXD- |
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05 | I_CTS/RTS+ | Twisted pair no. 2 <— | 5 | INDICATION+ |
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06 | I_DSR/DTR+ | <— | 12 | INDICATION- |
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04 | O_RTS/CTS | Twisted pair no. 4 | 3 | CONTROL+ |
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20 | O_DTR/DSR+ | 10 | CONTROL- | |
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17 | I_RXC/TXCE+ | Twisted pair no. 8 <— | 6 | TIMING+ |
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09 | I_RXC/TXCE- | <- | 13 | TIMING- |
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| Twisted pair no. 6 |
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| Twisted pair no. 7 |
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C.6 X.21 DCE – CB-ERTX21-FC
Pin to | Description |
| Pin to device | Description |
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21 | MODE_1 | GND |
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18 | MODE_0 |
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25 | MODE_DCE | GND |
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1 | Shield |
| 1 | Shield_GND |
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7 | GND |
| 8 | GND |
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03 | I_RXD/TXD+ | Twisted pair no. 3 <— | 2 | TXD+ |
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16 | I_RXD/TXD- |
| 9 | TXD- |
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02 | O_TXD/RXD+ | Twisted pair no. 5 | 4 | RXD+ |
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14 | O_TXD/RXD- |
| 11 | RXD- |
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05 | I_CTS/RTS+ | Twisted pair no. 2 <— | 3 | CONTROL+ |
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06 | I_DSR/DTR+ | <— | 10 | CONTROL- |
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04 | O_RTS/CTS | Twisted pair no. 4 | 5 | INDICATION+ |
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20 | O_DTR/DSR+ | 12 | INDICATION- | |
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24 | O_TCXE/RXC+ | Twisted pair no. 8 | 6 | TIMING+ |
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11 | 0_TXCE/RXC– | 13 | TIMING- | |
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| Twisted pair no. 6 |
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| Twisted pair no. 7 |
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99