Hello Everybody,
we have several Tektronix K1103 protocol analyzers standing around here
and it was quite complicated to get the pinout of the SUB-D 9 connectors.
Monitor A:
Pin Purpose
9 RX+B
4 RX-B
6 RX+A
1 RX-A
2,3,4 GND
A = E-1-Linecard -> BTS
B = BTS -> E-1-Linecard
Monitor C:
9 RX+D
5 RX-D
6 RX+C
1 RX-C
2,3,4 GND
Telephone socket:
1 mic input (-)
2 hearer output (+)
3 hearer output (-)
4 mic input (+)
Factsheet of this analyzer:
http://www2.tek.com/cmswpt/psdetails.lotr?ct=PS&lc=EN&ci=14411&…
Holger