Making Power Connections; Main Shelf And Expansion Shelf Cabling - Symmetricom TSG-3800 Series User Manual

Making Power Connections

To connect power to the expansion shelf, perform the following steps:
1. Remove PWR A and PWR B fuses from the rear of the expansion shelf.
2. Locate the POWER terminal block. Connect the 'A' power feed to the POWER A
terminals. Connect the 'B' power feed to the POWER B terminals.
3. Measure the voltage from each –48 vDC to GND (of the Expansion shelf) and
verify the proper level and polarity exists. There is reverse polarity protection for
each input.
4. Measure between ground and chassis and verify that no voltage potential exists
between them.
5. Insert the modules using the procedure in
6. Insert the PWR A and PWR B fuses and verify that all modules are receiving
power by checking that their POWER indicators are lit.

Main Shelf and Expansion Shelf Cabling

The expansion shelf receives input signals from the TSG-3800 Main Shelf through a
cable assembly (see
and TSG-3800E). Refer to
assembly, you can connect the expansion shelf connector J1 to the 19-inch Main
shelf connector J9, or J11 on the 23-inch Main Shelf. If you are connecting a second
19-inch Expansion Shelf, connect from the first expansion shelf connector J11 to the
second shelf connector J1. With 23-inch shelves, connect the first 23-inch shelf
connector J13 to the second shelf connector J1.
required between shelves.
Table 2-9. Expansion Shelf Connections
TSG-3800 19-Inch Shelf
FROM TO
Shelf/ Shelf/
Connector Connector
Main J9 Expansion #1
J1
Expansion Expansion #2
#1 J11 J1
12778474-002-2 Revision F – March 2004
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Appendix A, Part Numbers
Figure 2-19 for the following example. Using the cable
TSG-3800 23-Inch Shelf
FROM TO
Shelf/ Shelf/
Connector Connector
Main J11 Expansion #1
J1
Expansion Expansion #2
#1 J13 J1
Installing the TSG-3800
TSG-3800 Expansion Shelves
Installing Modules, on page 63.
for a list of parts for the TSG-3800
Table 2-9 lists the connections
TSG-3800E 19-Inch Shelf
FROM
Shelf/
Connector
Main/J9
Bus Termination: Install on
J11 of Expansion shelf
TSG-3800 User's Guide
TO
Shelf/
Connector
Expansion J1
69