Specifications

Remember that any IP device talking to any TDM device will still require an MGI channel.The below chart shows
where MPS channels can be used and where devices will peer without using any system resources:
2.3 DAUGHTERBOARD MODULES
4DM (DIGITAL PHONE MODULE)
This daughter module is a four circuit digital station interface card that provides service for the different models
of Samsung digital keyset. The 4DM can be inserted in any of the two slots 2 and/or 3 of the main unit.
2DM (DIGITAL PHONE MODULE)
This daughter module is a two circuit digital station interface card that provides service for the different models
of Samsung digital keyset. The 4DM can be inserted in any of the two slots 2 and/or 3 of the main unit.
4SM (SINGLE LINE MODULE)
This daughter module is a four circuit analog station interface for industry standard single line telephones. The
card can only be installed in slots 2 and or 3 of the main unit/expansion units.The 4SM does not contain any over-
voltage protection and is not qualified an OPX. It also does not contain DTMF receivers, but instead shares the
system DSP resources. The OfficeServ 7030 SLI ports support caller ID to single line telephones and loop open
disconnect signalling. Connecting multiple telephones to a port may result in incorrect operation or damage to
the card.
The main functions of 4SM voice station board are as follows:
• Generating the ring of 20 Hz
• Detecting Dial Tone Multi Frequency (DTMF)/dial pulse
• Detecting on/off-hook
• Generating a tone
4TM (TRUNK MODULE)
This daughterboard module contains four loop start CO lines interface circuits with CO disconnect detection. It
also contains the circuitry needed for Caller ID. The 4TM can only be inserted into slot 4 of the main unit. Each
port of this card is intended for connection to Telco. Connecting multiple telephone lines (half-tapping) to a port
may result in incorrect operation or damage to the card.
4TM voice trunk line board performs the functions below:
• Detecting ring reception
• Detecting on/off-hook
• Transmitting dial pulse
2.3
FIGURE 2-3
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