Patton 1000, Руководство по началу работы

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1 • General Information
SmartNode 1000 and 2000 Series Getting Started Guide
36
Interface cards descriptions
Figure 15. IC-4FXS
Ports
The card provides the four FXS ports whose details are tabulated in table 13 . Protector circuits protect the
ports from high voltage surges. See appendix A, “Specifications” on page 159 for pin out data.
Description
The IC-4FXS interface card provides four FXS ports, together allowing up to 4 analog voice channels to work
in parallel.
Each ports provides the following the following:
• -48 VDC to the connected terminal
• Ring voltage to the connected terminal (normally 96 VAC at 25 Hz)
• On-hook transmission
• Caller identification (CLIP)
• Metering pulses
• Recognize dialed digits
The FXS ports must be connected to FXO ports.
Note
When using the IC-4FXS, an internal line power module must be
installed (see chapter 8,
“Line power module installation” on
Table 13. IC-4FXS port description
Port Description
0 ... 3 FXS RJ-11 socket to connect the SmartNode to an analog terminal (subscriber). Only two wires
(Ring, Tip) are used. The ‘Loop Start’ method is used to signal whether the terminal is on- or off-hook
(loop closed = on-hook).