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MX Series Voice Gateway User Manual
New Rock Technologies, Inc.
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1.3.5 MX120G
Designed with a 2U high and 19-inch wide compact chassis, MX120G is suitable for installation in a
standard cabinet.
The interface card of MX120G uses a RJ-45 socket and is connected to the distribution panel in equipment
room using CAT-5 cables supplied with the unit.
The device of MX120G can hold four interface cards to flexibly configure FXS and FXO ports, and each
card equips 24 ports. MX120G can provide up to 96 ports. It supports the following configurations:
Table 1-20 MX120G Interface Card
Type FXS Ports FXO Ports
24FXS 24 0
24FXO 0 24
16FXS/8 16 8
12FXS/12 12 12
Table 1-21 Configuration Combination of MX120G
Models
Number of FXS
Ports Number of
FXO Ports
Concurrent calls Description
MX120G-NA-X
Depend on the models and number of
the interface cards.
Depend on the value of X.
X=C, it is 24
X=D, it is 48
X=E, it is 72
X=F, it is 96
Single AC power
MX120G-NA-X-2AC
Dual AC power
MX120G-NA-X-1DC
Single DC power
MX120G-NA-X-2DC
Dual DC power
Figure 1-12
MX120G Front Panel
Table 1-22 Description of MX120G Front Panel
Item Description
Matrix of 6x4 LED status indicator on interface card. Each column of LED indicator matrix
matches four telephone lines on a RJ45. The first column on the left matches Line 1-4
respectively from top to bottom, the first column on the right matches Line 21-24 respectively
from top to bottom, and the middle columns in the same manner.