Specifications

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Models Number of FXS Ports Number of FXO Ports
WSS120-80S/16 80 16
WSS120-28S/20 28 20
WSS120-52S/20 52 20
WSS120-76S/20 76 20
WSS120-24S/24 24 24
WSS120-48S/24 48 24
WSS120-72S/24 72 24
WSS120-44S/28 44 28
WSS120-68S/28 68 28
WSS120-40S/32 40 32
WSS120-64S/32 64 32
WSS120-36S/36 36 36
WSS120-60S/36 60 36
Figure 1-7 WSS120 Front Panel
Table 1-18 Description of WSS120 Front Panel
# Description
① and ② Two interface slots; each can contain one 24-port interface card.
③ Matrix of 6×4 LED status indicator on interface card
Do not plug and remove the interface cards of WSS120 when equipment is powered on.
Each RJ45 socket has 8 pins leading out 4 pairs of analog telephone or trunk lines in agreement with
the pair specifications for Ethernet interfaces, whose corresponding relations can be seen in the table
below. CAT-5 cables are used to connect the interface card and distribution panel in equipment
installation. Standard RJ11 telephone lines can be used to plug in a RJ45 socket. The telephone/trunk
lines are connected to the 3
rd
pair of pins for simple call test.