APPENDIX B
MODEL 2703-X21 PIN CONFIGURATIONS
APPENDIX A
PATTON MODEL 2703 SPECIFICATIONS
Network Interface:
G.703
Network Rate:
2.048 Mbps
Network Connectors:
Two BNC (75 Ohm) and one
modular RJ-45 connector (120
Ohm)
Terminal Interface:
X.21 on female DB-15 connector
Terminal Rate:
2.048 Mbps, 1.024 Mbps, 512 kbps
or 256 kbps
Diagnostics:
Loopback Test
Indicators:
LEDs for power, network, master
clock and loopback test
Clocking:
Internal (Master) or Network
Recovered (Slave) clock
Receiver Sensitivity:
-10 dB (0dB = 2.4V)
Power:
85/265 VAC (switch selectable),
50/60 Hz; 85-265 VAC, 50/60 Hz
(universal input option); 48 VDC
(option)
Temperature Range:
0-50°C (32-122°F)
Altitude:
0-15,000 feet
Humidity:
5 to 95% noncondensing
Dimensions:
7.3” x 6.6” x 1.62” (185mm x
168mm x 41mm)
Weight:
2.02 lbs.
15
16
CCITT X.21 INTERFACE (DB-15)
1 FRAME GROUND
2 TRANSMITTED - A
3 CONTROL - A
4 RECEIVE - A
5 INDICATION - A
6 SIGNAL TIMING - A
7
8 SIGNAL GROUND
TRANSMIT B 9
CONTROL B 10
RECEIVE B 11
INDICATION B 12
14
15
SIGNAL TIMING 12
1- Frame Ground
2- Transmit - A
3- Control - A
4- Receive - A
5- Indication - A
6- Signal Timing - A
8- Signal Ground
Transmit - B - 9
Control - B -10
Receive - B -11
Indication - B -12
Signal Timing -B 13
