Tektronix K1297-G20 User Manual
Page 136
Appendix A: Interfaces
A-36
K1297-G20 Monitor User Manual
B Channel Access Adapter.
B channel data is extracted using an optional
accessories adapter cable, which features two connectors: a 10-pin mini
plug for the interface module (“64k EXT”) on one end and a female 15-pin
D-Sub plug on the other end with the following pin assignment.
8
1
9
Figure A–3: B channel connection
Table A–23: Pin assignment for B channel connection
Pin
Assignment
Pin
Assignment
1
Output RxD/B1 from
network-side when monitoring
9
Output RxD/B2 from user-side
when monitoring
2
Not connected
10
Output RxD/B2 from network-side
when monitoring
3
Output RxD/B1 from user-side
when monitoring
11
Not connected
4
Input TxD/B2
12
Input TxD/B1
5
Not connected
13
Output TxC (64 kHz inverted to
RxC)
6
Output RxC (64 kHz)
14
Not connected
7
Output frame signal B1 (8kHz)
15
Digital Ground
8
Output frame signal B2 (8kHz)