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
RTS/CTS Delay: Selectable per port: 0mS or 6.6mS
DCD: Selectable per port as continuous or RTS controlled
Ring Indicator: Constantly ON
Interface: EIA RS-232C/CCITT V.24
Connectors: Choice of two male or two female DB-25 RS-232
connectors
Power Supply: None required
Altitude: 0 to 10,000 feet
Humidity: Up to 95% non-condensing
Dimensions: Approximately 5.3” x 2” x 1.2”
APPENDIX B
BLOCK DIAGRAM
7
8
Patton Model 1203
Block Diagram