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General Description
Description, Installation, Operations, and Maintenance Manual
Federal Signal www.fedsig.com
Table 10 Environmental and Physical for the External AP Mux Card (P-EAMC-G)
Operating Temperature
-10 to +55°C
Humidity
0-98% non-condensing
P-EAMC-G Dimensions (H x W x L)
45 mm x 343.9 mm x 171.9 mm
Weight
0.51 kg/1.13 lb
2.5.10 Miscellaneous I/O Card (P-CMC-G)
The Miscellaneous I/O card (P-CMC-G) (see Figure 10) provides several input/output
(I/O) interfaces for the System Controller:
• Local Microphone
• PABX Interface Module
• Auxiliary audio interface
• ISMT RS485 Port
• RS232 command line interface for processor card DSP
The Miscellaneous I/O card provides an audio preamp for the PAGASYS GEN II local
microphone. The preamplifier also provides a 20-kHz test tone, which is injected into the
microphone capsule to enable critical signal path monitoring between the microphone
capsule and processor card DSP. A press-to-talk (PTT) interface circuit is provided to
enable monitoring of the microphone PTT button.
The P-CMC-G provides a PABX interface module for the System Controller. The PABX
interface module plugs into the P-CMC-G board. Configure the PABX interface with the
System Manager software to operate with a standard analog extension line or a CO trunk
line. The PABX interface provides ring, call progress tone, and DTMF tone detection.
The incoming and outgoing telephone audio signals are routed from the PABX interface
circuit located on P-CMC-G, through the System Control backplane, and onto the
Amplifier Audio MUX card, where the audio signals are converted to and from digital
format respectively. The System Processor card controls and monitors the interface
through a serial port connected to the microcontroller located on the P-CMC-G.
Similarly, the P-CMC-G provides an auxiliary audio interface for the System Controller.
The incoming and outgoing auxiliary audio signals are routed through the P-CMC-G
AUX Audio connector, through audio transformers located on the P-CMC-G, through
the System Controller Backplane and onto the P-AAMC-G and the AP Mux card slot
in System Controller slot 1, where the signals are converted to and from digital format
respectively. A press-to-talk (PTT) interface input circuit is provided to enable monitoring
of the Auxiliary audio input external PTT switch contact. A PTT interface output circuit is
provided to enable remote monitoring of the Auxiliary audio output relay contact.
NOTE
: The service model for the Miscellaneous I/O card is K-P-CMC-G.
