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Interface attributes, Interface leds – H3C Technologies H3C MSR 50 User Manual

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voice signals over data communication networks. The differences between SIC-FXS and SIC-FXO are
listed below:

z

SIC-FXS modules are analog subscriber line modules that provide ordinary analog telephone and
fax access and also can connect AT0 loop trunks of exchanges;

z

SIC-FXO modules are loop trunk modules that provide access of common subscriber lines of
exchanges.

Interface attributes

The interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO are given in the following
table:

Table 2-36 Interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO

Attribute

Description

Connector type

RJ-11

Number of connectors

1 (SIC-1FXS/SIC-1FXO)
2 (SIC-2FXS/SIC-2FXO)

Interface standard

z

Subscriber circuit interface (SIC-1FXS/SIC-2FXS) compliant with ITU
Q.512.

z

Loop trunk interface (SIC-1FXO/SIC-2FXO) compliant with ITU Q.552.

z

Over-current and over-voltage protection compliant with ITU K.20

Cable type

Telephone cable with ferrite core.

Dialing mode

Supports DTMF, not supports pulse dial-up.

Bandwidth

300 Hz to 3400 Hz

Interface LEDs

z

SIC-1FXS/SIC-1FXO panel

Figure 2-60 SIC-1FXS panel

Figure 2-61 SIC-1FXO panel

z

SIC-2FXS/SIC-2FXO panel

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