The Model 1004A 2/4 wire short range modem is the "next generation" replacement for our popular Model 1004. The Model 1004A still gives you up to 50 terminal drops over one (half duplex) twisted pair, and still supports async data rates up to 115.2 kbps. It also passes data plus one control signal in each direction, just like the Model 1004. However, the Model 1004A now gives you more flexibility, with extra configuration parameters: Two separate high/low impedance settings, "echo" on/off and selectable RTS/CTS delay are now standard, as well as selectable carrier control and a DCE/DTE switch. Also standard on the new Model 1004 is 600 wats per wire of Silicon Avalanche Diode surge protection (no need to add an "S" to the model number when ordering). The Patton Model 1004A- it's the same short haul you've come to depend on, only better!

 

Trans. Format: Asyncronous
Data Rate: Up to 115,200 bps
Transmit Line: 2, 4 wire unconditioned twisted pair
Transmit Mode: Full or Half Duplex
Transmit Level: 0 dbm
Range: Over 9 miles (14.5 Km)
Control Signals: DSR turns "ON" immediately after the terminal raised DTR; DCD turns on after recognizing the receive signal from the line; CTS turns on 8 mSec after the terminal raises RTS
Carrier: The carrier is a strap selected for either continuous operation or controlled
by RTS
Surge Protection: 600W power dissipation for up to 1 msec
Power: None required, uses ultra low power from EIA data and control signals
Dimentions: 2.66" X 2.10" X 0.73" (6.8 X 5.3 X 1.9 cm)