3Com T1/PRI manual Off and signaling Channel Down

Models: T1/PRI

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A-4APPENDIX A: TROUBLE CLEARING

Alarm/Error

Level

Trouble Clearing

 

 

 

Signaling Channel

N/A

Contact the Telco to see what their

Down

 

side is receiving. If they’re showing

 

 

that the Signaling Channel is up,

 

 

there is most likely a problem in the

 

 

receiving pair at your site.

 

 

If the module is indicating alternating

 

 

Signaling Channel Up (Loopback LED

 

 

off) and signaling Channel Down

 

 

signals, there is most likely a cabling

 

 

mismatch between the TX and Rx

 

 

signals.

 

 

 

Using SNMP Traps The Total Control Enterprise Network Hub provides for the management of the Dual T1/PRI NAC via the Network Management Card (NC) NAC. The NMC manages the Dual T1/PRI and other cards in the chassis using Simple Network Management Protocol (SNMP).

One function of SNMP is to allow for faults, or traps, to be triggered when one of the cards experiences an alarm condition. View the alarm conditions using a standard MIB browser or 3Com’s Total Control Manager/SNMP software.

The T1/PRI NAC triggers traps at both the card and span levels.

For a detailed listing and explanation of Dual T1/PRI traps, consult the

Total Control Parameter Reference on the Total Control CD-ROM or the

Total Control Manager/SNMP online help.

Page 47
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3Com T1/PRI manual Off and signaling Channel Down