Patton electronic 1140ARC User Manual

Page 19

APPENDIX A

PATTON MODEL 1140ARC SPECIFICATIONS

Transmission Line: Dual optical cable

Transmission Mode: Asynchronous, half or full duplex, point-to-point

Interfaces: EIA RS-232, CCITT V.24

Data Rates: 0 - 57.6 Kbps

Distance: 4 miles over continuous fiber

RTS/CTS Delay: Switch-selectable: No delay, 7.0 mS, 53 mS

Receiver Sensitivity: -45 dBm

Coupled Power Output: -20 to -25 dBm

Optic Wavelength: 850 nm

LED Indicators: Power, TD, RD, RTS, CD, Test Mode, Error

Connectors: HD-26 female on RS-232 side; ST or SMA connectors

on fiber side

Power Supply: 120/240V (switchable) on rack chassis

Temperature Range: 0-60°C (32-140°F)

Altitude: 0-15,000 feet

Humidity: Up to 95% non-condensing

Weight: 2 oz.

Dimensions: 0.95”W x 3.1”H x 5.4”L

5.3.3 USING THE V.52 BER TEST INDEPENDENTLY

The Model 1140ARC's V.52 BER test can be used independent of

the V.54 loopback tests. This requires two operators: one to initiate and
monitor the test at both the local and the remote Model 1140ARC. To
use the V.52 BER test by itself, both operators should simultaneously
follow these steps:

Locate the lower of the two toggle switches on the front panel
of the Model 1140ARC and move it to the right. This will
activate the V.52 BER test mode and transmit 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 independent test to function, the “511” switch on
both Model 1140ARCs must be turned on.

If the test indicates no errors are present, move the V.52
toggle switch to the left, thus activating the “511/E” test with
periodic errors present. If the test is working properly, the
receiving modem’s red “Error” LED will blink

regularly. A

successful “511/E” test will confirm that the link is in place, and
that the Model 1140ARC’s built-in “511” generator and detector
are working properly.