User guide

A-1
A
SpeciÞcations A
T1 NETWORK INTERFACE
EXTERNAL CLOCK INTERFACE
Parameter Setting
Interface Type DSX-1 Standard
T1 CSU Optional
Number of Ports 2, 4, 6 or 8
Framing Formats D4 or ESF
ESF FDL Protocols AT&T 54016
ANSI T1.403
Line Code AMI or B8ZS
Transmit Line Rate 1.544 Mbps ± 50 ppm
Receive Line Rate 1.544 Mbps ± 135 ppm
Synchronization Internal, Loop-timed, or External
Network Connector DB-15 Socket
Parameter Setting
Rate 1.544 MHz ± 50 ppm
Connector Type DE-9
Input Impedance 10K W
Input Voltage ±7 V per RS-422 Standard