coM.sat ISDN Basic
created: page: file:
16/01/09 92 coMsat ISDN Basic Manual V2.7.doc
Note Protection Mark according to DIN 34!
Appendix 1: LED Function
The coM.sat ISDN Basic features altogether 6 LED's in different colours, intended
to display the different operating conditions. An imprint on the housing allows for the
identification of the LEDs' function.
Name LED
colour
Status Meaning
Power green on ready, on
off off
Sync red on (TE) or
flashing (NT)
TE Mode: ISDN connection up
NT Mode: Synchronisation present
off TE-mode: line fault
NT-mode: device is operated w/o
synchronisation, or line fault
Network green off Booting
flashing
quickly
GSM channel not ready (initializing, no SIM card,
incorrect PIN, ...)
flashing slowly GSM channel presently logging into network
on GSM channel currently logged into network
Active yellow off no connection via channel
Flashing
quickly
no ISDN link (one LED for layer 1 and one for
layer 2)
Flashing
slowly
connection is being established or transparent
access by PC over USB
on connection is established
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