User manual

Chapter 1: Introduction
11
1.5 Technical Specifications
1.5.1 E1 Link
Ports 4 fixed ports
Framing Unframed (transparent)
Bit Rate 2.048 Mb/s +/-50ppm
Line Code AMI
HDB3
Line Impedance Unbalanced 75 ohms (BNC)
Balanced 120 ohms (RJ-45)
Receiver sensitivity -43dB (long haul)
"Pulse" Amplitude Nominal 2.37V+/-10% for 75 ohms
Nominal 3.00V+/-10% for 120 ohms
"Zero" Amplitude +/-0.1V
Transmit Frequency Tracking
Recovery Timing +/-50 ppm
Jitter Performance According to ITU-T G.823
Complies With ITU-T G.703 and G.823
Interface Connectors RJ-45 120 ohm (USOC RJ-48C)
BNC 75 ohm
Test Loops LLB (Local Loop Back)
RLB (Remote Loop Back)
RRLB (Request Remote Loop Back)
1.5.2 T1 Link
Ports 4 fixed ports
Framing Unframed (transparent)
Bit Rate 1.544 Mb/s +/-50ppm
Line Code AMI
B8ZS
Line Impedance Balanced 100 ohms (RJ-45)
Receiver sensitivity -36dB (long haul)
"Pulse" Amplitude Nominal 3.00V+/-20% for 100 ohms
"Zero" Amplitude +/-0.15V
Transmit Frequency Tracking
Recovery Timing +/-50 ppm
Jitter Performance According to ITU-T G.824
Complies With ITU-T G.703 and G.824
Interface Connectors RJ-45 100 ohm (USOC RJ-48C)
Test Loops LLB (Local Loop Back)
RLB (Remote Loop Back)
RRLB (Request Remote Loop Back)