User`s guide

USER’S GUIDE
400 CyberSWITCH
* On DMS-100 and NI-1 switches, more than one data link is possible.
•The CH-1 and CH-2 indicators signify activity along their respective B channel:
SERVICE INDICATOR
The Service indicator comes on normally during system power-up, and then goes off. If the Service
indicator remains lit or blinks after power-up, it is signaling that something needs attention in the
system.
Refer to the section below that pertains to the Service indicator’s activity. Also, you may access your
administrative console for further information (issue the
dr console command to view system
messages).
D-CHAN LED status One Data Link Multiple Data Links*
off no activity no activity
flashing
(mostly off)
trying to bring up
data link
not all data links are up
flashing
(mostly on)
activity
data link is up
activity
data link is up
on solid no activity
data link is up
no activity
data link is up
CH-1 or CH-2 LED
Status
Description
off no call over channel
flashing Data being passed over channel. Speed of
flashes depends upon number of frames being
sent.
on solid call up, but no data being transferred