Shelf Alarms; Pinout For Inter-Shelf Connection - Symmetricom TSG-3800 Series User Manual

Installing the TSG-3800
TSG-3800 Expansion Shelves
J9 of 19-inch or J11 of 23-inch (Main Shelf) to J1 (Expansion Shelf) pin connections
are 1 to 1 as are J11 on 19-inch or J13 on 23-inch (Expansion Shelf #1) to J1
(Expansion Shelf #2). Refer to
ground connections.
Table 2-10. Pinout for Inter-Shelf Connection
Pin Function
2 AIF
4 BIF
6 OF
8 A/NB
12 D4PB
14 D4NB
18 CCPB
20 CCNB
24 D4PA
26 D4NA
30 CCPA
32 CCNA
36 CLK1
38 CLK1
42 CKFB
44 CLK2
46 CLK2
48 CKFA
50 FAULT CLR
Note: All unlisted pins are ground connections

Shelf Alarms

Alarm relays are on the rear of the TSG-3800 Main shelf. Faults that occur on a
module in an expansion shelf are routed back to the CPU module located in the
TSG-3800 Main shelf.
72 TSG-3800 User's Guide
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Table 2-10 for pin assignments. All unlisted pins are
Description
Ch A Input Fault
Ch B Input Fault
Output Fault
Ch A/Ch B Enabled
DS1 Ch B Positive
DS1 Ch B Negative
Comp Clock Ch B Positive
Comp Clock Ch B Negative
DS1 Ch A Positive
DS1 Ch A Negative
Comp Clk Ch A Positive
Comp Clk Ch A Negative
Clock 1 'B' Signal
Clock 1 'A' Signal
Clock Fault 'B' Signal
Clock 2 'B' Signal
Clock 2 'A' Signal
Clock Fault 'A' Signal
Fault Clearing Line
12778474-002-2 Revision F – March 2004