Patton electronics 1092RC, User Manual

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3.1.1 Reversible Interface Driver Board
The Model 1092RC Series features switchable interface driver
boards that allow a wide range of DTE interface connections. Each
interface driver board incorporates two interfaces -- one on each side
of the driver board. Figure 3 shows the Interface Driver Board on the
bottom of the 1092RC PC board.
Follow the instructions below to select the correct interface for your
application:
1. With the 1092RC pulled out of the rack or clusterbox chassis,
locate the driver board on the top of the 1092RC front card.
2. Lift the interface board gently off of the PC board.
3. Locate the correct interface on the bottom of the driver board.
For example, the RS-232/V.35 interface board is marked
“THIS SIDE UP FOR RS-232” on one side and “THIS SIDE
UP FOR V.35” on the other side .
4. Re-orient the interface board into the socket with the
appropriate interface pointed UP and with the arrow pointing
toward the front panel of the Model 1092RC PC board.
5. Push the Interface Driver Board gently onto the socket and re-
install into the rack or cluster system.
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Figure 3. Closeup of Model 1092RC Interface Driver Board
ON
12345678
ON
12345678
Interface
Driver
Board
FRONT
THIS SIDE UP FOR V.35
5.2.3 Using the V.52 (BER) Test Pattern Generator
To use the V.52 BER tests in conjunction with the Remote Digital
Loopback tests* (or with Local Line Loopback tests), follow these
instructions:
1. Locate the “511/511E” toggle switch on the front panel of the
1092RC and move it to the left. This activates the V.52 BER
test mode and transmits a “511” test pattern into the loop. If
any errors are present, the local modem’s red “ER” LED will
blink sporadically.
2. If the above test indicates no errors are present, move the
V.52 toggle switch to the right, activating the “511/E” test with
errors present. If the test is working properly, the local
modem's red “ER” LED will glow. A successful “511/E” test
will confirm that the link is in place, and that the Model
1092RC’s built-in “511” generator and detector are working
properly.
*NOTE: The above V.52 BER tests can be used independently of
the Remote Digital Loopback tests. This requires two operators:
one to initiate and monitor the tests at the local
Model 1092RC,
and one to do the same at the remote Model 1092RC. In this
case, the test pattern sent by each Model 1092RC will not be
looped back, but will be transmitted down the line to the other
Model 1092RC.
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