Patton electronic 1140 User Manual

Page 7

1. Locate the “511/511E” toggle switch on the front panel of the

1140 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 pres-
ent, the receiving modem’s red “Error” LED will blink sporadically.
Note: For this test to function, the “511” switch on both Model 1140s
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 1140’s built-in “511” generator and detector are working proper-
ly.

5.3 POWER UP

Once the Model 1140 is properly installed, it should operate trans-

parently—as if it were a standard cable connection. Since operating
power is derived from the RS-232 data and control signals; there is no
“ON/OFF” switch. All data signals from the RS-232 interface are
passed straight through.

APPENDIX A

SPECIFICATIONS

Transmission Line: Dual optical cable

Transmission Mode: Async. or sync., half or full duplex

Interfaces: EIA RS-232, CCITT V.24

Data Rates: 0 - 38.4 Kbps

Distance: 2 miles over continuous fiber

RTS/CTS Delay: Switch-selectable: No delay, 9.0 mS, 79.5 mS

Receiver Sensitivity: -45 dBm

Coupled Power Output: -30 to -36 dBm

Optic Wavelength: 850 nm

LED Indicators: Carrier Detect and Fiber Optic Output

Connectors: DB-25 male or female on RS-232 side; ST or SMA con-

nectors on fiber side

Power Supply: No external power required; uses power from RS-232

data and control signals

Temperature Range: 0-60°C (32-140°F)

Altitude: 0-15,000 feet

Humidity: Up to 95% non-condensing

Weight: 2 oz.

Dimensions: 23.42” x 2.10” x 0.73”