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
1094A and move it UP. 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 DOWN, 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
1094A’s built-in “511” generator and detector are working
properly.
25
26
A
AP
PP
PE
EN
ND
DIIX
X A
A
PATTON ELECTRONICS MODEL 1094A
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, and 1168
kbps
DTE Rates:
64, 128, 192, 256, 320, 384,448, 512, 576,
640, 704, 768, 832, 896, 960, 1024, 1088,
and 1152 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 on serial interface
side, depending upon which interface
module is installed.
Power:
100-253 VAC, 50-60 Hz (universal input);
48 VDC (option). 10 watts.
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)
NOTE:
The above V.52 BER tests can be used independently
of the Remote Digital Loopback tests. This requires two opera-
tors: one to initiate and monitor the tests at the local Model
1094A, and one to do the same at the remote Model 1094A. In
this case, the test pattern sent by each Model 1094A will not be
looped back, but will be transmitted down the line to the other
Model 1094A. While one operator initiates test, the other moni-
tors for errors.