BEIJING HUAHUAN ELECTRONICS Co., LTD.
H9MO-1641S User Guide V2.2
- P.
10
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PB Protect
OLT-B
PC Protect
OLT-C
OLT
Optic light terminal
LOM
Loss of frame on optical port
LOSA
Loss of signal on OLT-A
LOSB
Loss of signal on OLT-B
LOSC
Loss of signal on OLT-C
ExALoss
External clock A signal loss
ExBLoss
External clock B signal loss
ExAB Bad
external
clock
A
ExBB
Bad external clock B
LALoss
Line clock A signal loss
LBLoss
Line clock B signal loss
LCLoss
Line clock C signal loss
LABad
Bad line clock A
LBBad
Bad line clock B
LCBad
Bad line clock C
RDI
Remote failure detected indication
LOP
TU-12 pointer loss
AIS
Alarm indication for E1 port (all “1” received)
LOS
Loss of signal on E1 port
VerS Software
version
VerE
Ethernet module version
485BR
RS485 port baud rate
Table 3.4 Acronym of LCD display
3.3 Rear
Panel
The rear panel of the H9MO-1641S is shown in figure 3.6.
1
0
ON
OFF
220
V
/50
H
z
A
C
ALM
E1 Termination block
SV
DATA
Figure 3.6 H9MO-1641S rear panel
3.3.1
E1 Interfaces Adaptor Board
An AMP connector is used on the rear panel of the H9MO-1641S for the E1 interface. An
alternative adaptor board is shown in figure 3.7 and used to provide 75 ohm or 120 ohm interfaces.