5.3.3 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
1095 and move it DOWN. 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 UP, activating the “511/E” test with
errors present. If the test is working properly, the local
modem's red “ER” LED will blink. A successful “511/E” test
will confirm that the link is in place, and that the Model
1095’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:
(1) to initiate and monitor the tests at the local Model 1095, and
(2) to do the same at the remote Model 1095. In this case, the
test pattern sent by each Model 1095 will not be looped back, but
will be transmitted down the line to the other Model 1095. While
one operator initiates test, the other monitors for errors.
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32
APPENDIX A
PATTON ELECTRONICS MODEL 1095
SPECIFICATIONS
Transmission Format:
Synchronous
Transmission Line:
Two-Wire unconditioned twisted pair
Clocking:
Internal, external or receive recovered clock
Interface Modules:
EIA RS-232/ITU/T V.24, RS-232/530,
ITU/T V.35 and ITU/T X.21
Line Rates:
144, 272, 400, 528, 784, 1040, 1552,
2064, and 2320 kbps
DTE Rates:
64, 128, 192, 256, 320, 384,448, 512, 576,
640, 704, 768, 832, 896, 960, 1024, 1088,
1152, 1216, 1280, 1344,1408, 1472, 1536,
1544, 1600, 1664, 172, 1792, 1856, 1920,
1984, 2048, 2112, 2176, 2240, and 2304 kbps
Diagnostics:
V.52 compliant bit error rate pattern
(511/511E pattern) generator and detector
with error injection mode; Local Line
Loopback and Remote Digital Loopback,
activated by front panel switch or via serial
interface
LED Status Indicators:
TD, RD, CTS, CD, DTR, NS(no signal), ER
(error) and TM (test mode)
Connectors:
RJ-45 on line side; DB-25 female, M/34
female or DB-15 female depending upon
which serial interface module is installed.
Power:
100-253 VAC, 50-60 Hz (universal input);
48 VDC (option), 10 watts.
Line Protection:
Surge Arrestor standard on all units
Temperature Range:
32-122°F (0° -50°C)
Altitude:
0-15,000 feet
Humidity:
5 to 95% non-condensing
Dimensions:
7.3” x 6.6” x 1.62” (185mm x 168mm x 41mm
Weight:
2.01 lbs. (1.0kg)
