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NDA-24296 CHAPTER 2
Page 117
Revision 1.0
PH-SW10
Time Division Switch
The PLO can output the clock signals (CLK) and the frame head signals (FH) as follows:
• 32.768 MHz CLK
• 8 KHz FH
• 5 msec × “n” FH (for wireless module).
The MUX performs multiplexing/de-multiplexing of the 2 Mbps PCM highways running in PIM 0, and it
sends/receives the PCM to/from the TSW, and operates like the MUX card of PIM 1/2/3.
This circuit card includes the Digital Tone Generator (DTG) and hold tone (MUSIC) insertion circuit. The
TONE ROM located on this circuit card contains the audible tone, and the hold tone is supplied from the
EMA card. In addition, the designated time slot of PCM (Speech Path Memory: SPM) can be inserted as a
tone/music voice prompt. (For example, you can join the SPM and a DAT port by the nailed down
connection, and the DAT's voice prompt is given to the system instead of ordinary tone/music.)
Additionally, this circuit card supports the CFT (3-Party Conference) function and is equipped with eight
circuits of 3-Party Conference Trunk.
Figure 2-53 Voice Prompting
[Voice Prompt sending for Tone] [Voice Prompt sending for Music]
Speech Path MemorySpeech Path Memory
TONE ROM MUSIC from EMA
Tone source selected by office data Music source selected by office data
[Time Slot for Speech Path Memory]
[SPM for music channel 16-29]
MG=01, Unit=2, Group=24, Level=0-7
MG=01, Unit=2, Group=25, Level=0-5
[SPM for music channel 0-15]
MG=01, Unit=0, Group=24, Level=0-7
MG=01, Unit=0, Group=25, Level=0-7
[SPM for Tone channel 16-31]
MG=00, Unit=2, Group=24, Level=0-7
MG=00, Unit=2, Group=25, Level=0-7
[SPM for Tone channel 0-15]
MG=00, Unit=0, Group=24, Level=0-7
MG=00, Unit=0, Group=25, Level=0-7
PIM 3
PIM 2
PIM 1
PIM0
To ne
Music
Note
Note:
MG=01, Unit=2, Group=25, Level=6-7 are not used.