Patton electronic RS-232 User 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.

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.