[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z381...
goetz at g-romahn.de
Tue Nov 4 12:18:13 EST 2014
The Alarm connector J3 is connected as follows:
pin 1 goes to pin 6 of U208
pin 2 goes to pin 5 of U208
pin 3 goes to pin 6 of U207
pin 3 goes to pin 5 of U207
U208 (and eventually U207) are labeled 207a. This leads to IL207 from
Siemens which is an optocoupler. Pin6 of this is collector and pin 5 is
emitter. Pins 1 and 2 are laser diodes.
All other pins of J3 look nc.
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