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5.3.4 V.52 BER TEST GENERATOR
The Model 1094 has a built-in test pattern generator and detector.
It can be invoked at both ends of a link simultaneously or it can be
used with the Local Analog or Remote Digital Loopbacks. The follow-
ing example requires two operators: one to initiate and monitor the test
at the local Model 1094, and one at the remote Model 1094. To use
the V.52 BER test by itself, both operators should simultaneously follow
these steps.
1.
Locate the 511/511E toggle switch on the front panel of the
Model 1094 and move it DOWN. This activates the V.52 BER
test mode and transmits a 511 pseudorandom test pattern to
the other unit. If any errors are received, the receiving Model
1094’s red ER LED will blink sporadically.
2.
If the test indicates no errors are present, move the V.52
toggle switch UP, activating the 511/E test. The 511/E test
transmits the 511 pseudorandom test pattern and injects
intentional errors about once per second. If the test is work-
ing properly, the receiving Model 1094’s red ER LED will blink
regularly.
A successful 511/E test will confirm that the link is in place,
and that the Model 1094 built-in 511 generator and detector
are working properly.
3.
This test can be done by one operator by first activating the
local analog loop or remote digital loop.
APPENDIX A
PATTON ELECTRONICS MODEL 1094
SPECIFICATIONS
Transmission Format:
Synchronous
Transmission Line:
Unconditioned twisted pair 19 - 26 AWG
Clocking:
Internal, external or receive loopback
Distance:
Up to 4.9 miles (7.9 km)
(19 AWG @ 384 kbps)
Data Rates:
384 and 768 kbps (switch selectable)
Carrier Control:
Constantly on or Controlled by RTS
RTS/CTS Delay:
No delay, short delay (1 - 4 ms),
long delay (8 - 20 ms).
Diagnostics:
V.52 compliant bit error rate pattern
(511/511E pattern) generator and detector
with error injection mode; V.54
compliant—local analog loopback and
remote digital loopback, activated by front
panel switch or via serial interface
LED Status:
TD, RD, RTS, CD, DTR, ER and TM
Indicators:
(test mode)
Isolation:
Minimum 3000V RMS via transformers
Surge Protection:
Immune to IEC-801-5 Level 2, 1kV
DCE/DTE Interface:
Field-replaceable Quick ConnectTM
modules.
Twisted Pair Interface:
8-position modular jack (RJ-45)
Power:
115/230 VAC (switch selectable), 50/60 Hz;
85 - 256 VAC, 50/60 Hz (universal input
option); 48 VDC (option). 5 watts.
Temperature Range:
0-50°C (32-122°F)
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:
2.02 lbs. 1.0 Kg
NOTE:
For this test to function, the 511 switch on both Model
1094’s must be on.
