Tektronix K1297-G20 - Manual (Page 144)

Appendix A: Interfaces
A-44 K1297-G20 Monitor User Manual
Table A–26: X.21 Monitor (Cont.)
Pin Assignment Pin Assignment
6 S tx clk A (IN)
–––13 14 Not connected
7 Not connected 15 Not connected
8 G-Signal ground
–––n Reference to a symmetrical pair