Specifications
Chapter 1. Introduction 
9 
Diagnostics 
Test Switches/Diagnostics  -Digital local loop back 
-Analog local loop back 
-Digital remote loop back 
-Test pattern / generator 
LED indicators 
PWR Green Power 
TD Green Transmit data 
RD Green Receive data 
RTS  Green  Request to sent 
DCD  Green  Data carrier detect 
Tx CLK Loss  Red  Transmit clock loss 
Signal Loss  Red  E1 line signal loss 
Sync Loss  Red  E1 line sync loss 
Alarm  Red  E1 line alarm, include: BPV error / CRC4 error 
/ Frame slip / All ones(AIS) / Remote alarm 
Error  Red  Bit errors during integral BERT 
Test  Red  Loop back and pattern test enabled 
Physical 
Height:  45 mm (1 3/4") 
Width:  195 mm (7 5/8") 
Depth:  155 mm (6 1/8") 
Weight:  0.5 kg (1 lb 2 oz) 
Power supply 
Voltage  90~250VAC (universal AC model) 
18~75VDC (universal DC model) 
Frequency  47 to 63 Hz for AC 
Power consumption  10 Watts 
Environment 
Temperature 
-10°~60°C / 15°~140°F 
Humidity  0 to 95% non-condensing 










