Comtech EF Data CMR-5910 Manual - Manual (Page 77)

Appendix D. TROUBLESHOOTING
This section covers suggestions to assist the user in troubleshooting the MG-SIP or MR-
SIP. If the suggestions in this section do not result in correct operation of the device,
please contact Comtech EF Data Customer Support for further assistance.
SYMPTOM: Device does not power up
When the device power is on, the blue PWR LED should be illuminated. If this LED
is not illuminated, ensure the power supply is plugged in and tightly connected to the
device.
SYMPTOM: Cannot communicate with the device using a terminal/PC
If the user cannot communicate with the device using a CEFD-supplied terminal
cable and a communications port on a desktop PC or notebook PC:
•
Ensure the terminal cable is connected to the PC’s communications port and
the
TERM port on the device.
•
The communication program (HyperTerminal or TeraTerminal) should be
configured as 38,400 BAUD rate, 8 Data bits and No Parity and 1 Stop bit –
commonly referred to as 38,400/8/N/1.
•
Flow control should also be disabled.
SYMPTOM: Cannot get
E-LINK LED to illuminate on the device
The most common mistake is using an “Ethernet Crossover Cable” instead of a
standard “patch cord” or “straight-through cable.” A crossover cable should only
be used if connecting the device directly to a PC. Otherwise, a patch cord to an
Ethernet concentrator (Hub) or switch should be used.
D–1