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User Manual K1297-G20 Monitor Protocol Tester ... - TRS-RenTelco

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Appendix A: Interfaces<br />

B Channel Access Adapter. B channel data is extracted using an optional<br />

accessories adapter cable, which features two connectors: a 10-pin mini<br />

plug for the interface module (“64k EXT”) on one end and a female 15-pin<br />

D-Sub plug on the other end with the following pin assignment.<br />

9<br />

1<br />

8<br />

Figure A–3: B channel connection<br />

Table A–23: Pin assignment for B channel connection<br />

Pin Assignment Pin Assignment<br />

1 Output RxD/B1 from<br />

network-side when monitoring<br />

9 Output RxD/B2 from user-side<br />

when monitoring<br />

2 Not connected 10 Output RxD/B2 from network-side<br />

when monitoring<br />

3 Output RxD/B1 from user-side<br />

when monitoring<br />

11 Not connected<br />

4 Input TxD/B2 12 Input TxD/B1<br />

5 Not connected 13 Output TxC (64 kHz inverted to<br />

RxC)<br />

6 Output RxC (64 kHz) 14 Not connected<br />

7 Output frame signal B1 (8kHz) 15 Digital Ground<br />

8 Output frame signal B2 (8kHz)<br />

A-36 <strong>K1297</strong>-<strong>G20</strong> <strong>Monitor</strong> <strong>User</strong> <strong>Manual</strong>

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