Patton electronic RS-232 - Manual (Page 8)

APPENDIX A
PATTON MODEL 1035 SPECIFICATIONS
Transmission Format: Synchronous
Transmission Line: Unconditioned twisted pair 19 - 26
AWG
Clocking: Internal, external or receive
loopback
Distance: To 6 miles
Interfaces: EIA RS-232, CCITT V.24, CCITT
V.35
Data Rates: 32, 56 and 64 Kbps (switch
selectable)
Isolation: Minimum 1500 V RMS via isolation
transformers
Surge Protection: 600W power dissipation at 1 mS
Control Signals: “Constantly on” or “Controlled by
RTS”
RTS/CTS Delay: No delay, 7ms, 53ms
Connectors: DB-25 female or male on RS-
232/V.35 side; RJ-11 or RJ-45 on
line side
Power Supply: 7.5V DC wall mount transformer
Temperature Range: 0-60°C (32-140°F)
Altitude: 0-15,000 feet
Humidity: 5 to 95% non-condensing
Dimensions: 3.55” x 2.1” x .80”
Weight: 2 oz.
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A. Activate RDL. This may be done in two ways: first, by moving
the front panel toggle switch UP to “RDL”. Second, by raising pin 21 on
the interface. (Note: Make sure SW1-8 is OFF).
B. Perform a BER (bit error rate) test on the system.
C. If the BER test equipment indicates a fault, and the Local
Analog Loopback test was successful for both Model 1035s, you may
have a problem with the twisted pair line between the modems. You
should then check the twisted pair line for proper connections and
continuity.
5.3.3 Using the V.52 BER Test Independently
The V.52 BER test can be used independently of the V.54 loopback
tests. This requires two operators: one to initiate and monitor the test
at the local Model 1035, and one at the remote Model 1035. 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
1035 and move it DOWN. This activates the V.52 BER test mode and
transmits a “511” test pattern to the other unit. If any errors are present,
the receiving modem’s red “Error” LED will blink sporadically. Note: For
this test to function, the “511” switch on both Model 1035s must be on.
2. If the 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 receiving modem's red “Error” LED will glow. A
successful “511/E” test will confirm that the link is in place, and that the
Model 1035’s built-in “511” generator and detector are working properly.
5.4 POWER-DOWN
Turn off the Model 1035 by unplugging the AC power adapter from
the wall. There is no power switch on the Model 1035.
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