Beijing Huahuan Electronics H0EL-EthMux V8, Руководство пользователя

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Huahuan
Beijing Huahuan Electronics Co., Ltd.
H0EL-EthMux V8 User Manual V1.1 - 13-
4.

Common faults
This paragraph describes common mistakes and faults that may occur during
installation and maintenance. Please seek support from Beijing Huahuan Electronics
Co., Ltd for other problems.
4.1 E1 Alarms
There are two groups of LEDs, PKT LOS and LOS for E1 alarms LEDs.
When E1 LOS LED is on, loss of E1 signal fault is detected by EthMux.
Possible causes include:

The downstream equipment such as telephone exchange or PCM terminal
is powered off.

The E1 cable connection looses or broken.
E1 LOS LED blinks when respective input E1 signal is AIS, i.e. the content of
E1 data is all 1’s. Such alarm indicates fault conditions on the part of the downstream
equipment.
E1 LOS site is controlled by Dip Switch RA state. When RA Dip Switch ON, the
red LEDs indicate remote E1 LOS state.
When RA Dip Switch OFF, the
red LEDs
indicate local E1 LOS state.
The E1 PKT LOS lights are
packet loss indicator, On for Ethernet packet loss, Blink
for E1 Packet Loss, Off for Normal.
4.2 Lnk/Act LED off
Lnk/Act LED off means the corresponding Ethernet link is not working. Check
the Ethernet cable connection, and the status of the device on the other end of the
cable.
4.3 Ready LED does not blink
After power on, the Ready LED should start to blink. If not, try switch power
off and on again. If this error persists, call for support.
4.4 Cannot set up E1channel
4.4.1 Same LAN domain
When two H0EL-EthMux V8’s are within the same Ethernet broadcast domain,
try following.
Check if the transmission network is on.
Check that the network will pass broadcast packets. For a network that