USER MANUAL MODEL 1203 High Speed Synchronous Modem Eliminator Part# 07M1203-A SALES OFFICE Doc# 049013UA (301) 975-1000 Revised 7/5/95 TECHNICAL SUPPORT (301) 975-1007...
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Supporting selectable data rates of 7, 14, 28, 56, 112 and 224 Kbps, the Model 1203 needs no AC power or batteries for operation. The Model 1203 provides internal or external clock options and operates half or full duplex.
6.6mS. Port 1 and port 2 may be configured separately. The default setting is 6.6mS for both ports. 3.4 GROUND The ground strap setting connects the protective ground from port 1 or 2 to the Model 1203’s signal ground. The default setting is port 1.
The Patton Model 1203 is very simple to install. 1. Configure according to the instructions listed in Section 3.0. 2. Turn off the computer or device to which the Model 1203 is to be connected. 3. Plug the DB-25 connectors directly into the serial ports of your RS-232 devices.
APPENDIX A SPECIFICATIONS Data Rates: Strap selectable for 7, 14, 28, 56, 112 and 224 Kbps Clocking: Strap selectable for Internal or external clock Grounding: Protective ground (pin 1) may be strapped to signal ground (pin 7) Range: 75 feet on either side (for a total of 150 feet) at 56 Kbps, range extends linearly for lower bit rates and decreases for higher bit rates Functional: Emulates half or full duplex, dial-up or dedicated line...