Enterasys csx400 Installationsanweisungen

CyberSWITCH CSX400 and CSX400-DC Installation Guide

5-7

WPIM-HDSL is configured for either Full or Fractional T1 and the WPIM is not able to establish 
synchronization on Loop 1 with the remote HDSL circuit.

Use QuickSET or Local Management to verify that one of the WPIM-HDSLs is involved in the 
connection is set to Master (Local) Timing and that the other one is set to Slave (Loop) Timing.

Verify the use of proper cabling for the HDSL connections. Category 3 or Category 5 
Unshielded Twisted Pair copper wiring is required. One pair (2 wires) for Fractional T1, two 
pair (4 wires) for Full T1. The presence of bridged taps and multiple wire segments connected 
together to form the loop may reduce the maximum distance usable between the Remote and 
Local devices. Wire gauge has an impact on the distance which can be supported as well. The 
maximum distance is 12,000 feet using 24 AWG wiring.

Verify the gauge and condition of the wire. A trained line technician may be necessary to 
determine this. 

Verify that the distance between the Remote and Local units is less than 12,000 Feet.

The DDS circuit is Out of Service (OOS).

Contact your WAN DDS Service Provider and have them test the operation of your DDS circuit.

The Port is operating normally; Request to Send (RTS) has been activated by your WAN device. If 
it is not, use the following steps:

Use QuickSET or Local Management to make sure that the WAN interface on the local device 
is configured properly.

Verify the cabling being used between the CSX400 and the CSU/DSU.