Raisecom RC3000-15 Hardware Description page 94

Raisecom
RC3000-15 (P100R001) Hardware Description
8.1 32FXS/32FXO
8.1.1 Functions and appearance
Panel
The 32FXS/32FXO card is a 32-way voice access card.
It provides the following functions:
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Function
Provide 32 ways of voice services. There are three
voice modules: 32FXS, 32FXO, and 16FXS16FXO.
Support signaling occupation bits: a-bit and b-bit. By
default, it is a-bit.
Support configuring voice gain through software:
The A/D gain ranges from -10 to 16 dB, and is 0 dB
–
by default.
The D/A gain ranges from -13 to 10 dB, and is -3.5
–
dB by default.
The step is 0.1 dB.
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Support configuring the signaling mode to
RAISECOM, user-defined mode, or other modes. By
default, it is RAISECOM.
Support querying signaling status.
Support reverse polarity switching.
Support CID.
Support lightning protection and overcurrent
protection.
 The 32FXS card is of high power when multiple
ways of services are in off-hook status, so hot
swapping is prohibited.
 To avoid abnormalities such as false ringing,
remove the cable of each voice interface before
hot swapping of the 32FXS or 32FXO card.
8 Voice cards
69