Grandstream Networks UCM6510 IP PBX User Manual

Firmware Version 1.0.1.12
UCM6510 IP PBX User Manual
Page 243 of 277
Connected and working
RED alarm: there is physical wiring problem, loss
of connectivity, or a framing/line-coding
mismatch with the remote switch.
YELLOW alarm: connected but the link is
working only one-way. This means that the
remote switch is not able to maintain sync with
you, or is not receiving your transmission.
The following example scenarios could trigger
YELLOW alarm:
 The T1 port is connected with J1
connection.
 Incorrect cable is used.
 When using E1, one end is using CRC4
while the other end is not.
BLUE alarm: the port goes into BLUE alarm
when it receives all unframed 1s on all timeslots
from the remote switch. This is a special signal to
indicate that the remote switch is having problem
with its upstream connection.
Cannot start up
Other operations are also available in interface status section:
 Click on to refresh the interface status.
 Click on [ + ] to expand the interface details.
 Click on [ - ] to hide the interface details.
DIGITAL CHANNELS STATUS
This section displays the status of the digital trunks on the UCM6510.

Grandstream Networks UCM6510 IP PBX Specifications

General

Brand	Grandstream Networks
Model	UCM6510 IP PBX
Category	Processor
Language	English