Toa N-8000 Series Ver.1.41 - Manual (Page 50)

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Chapter 1: GENERAL DESCRIPTION
9.5. BGM
Background music can be transmitted to the station speakers in standby mode by connecting the N-8000MI
unit to musical playing equipment. Any BGM program can be selected from 8 channels at each station.
N-8000MI
N-8000MI
BGM signal: 1 pair each (0dB*)
BGM
Channel 1
BGM
Channel 2
BGM
Channel 7
BGM
Channel 8
Can be freely
selected at
each station.
BGM 7
BGM 1
BGM 4
* 0 dB = 1 V
Note
Since BGM is lower than conversations and paging in priority, BGM may be interrupted at a BGM-broadcast
station even if the station performs no operation when other station makes a call or paging with all speech
links busy. Especially for the N-8010EX, which has a small number of speech links, BGM interruption happens
more frequently.
9.4. PBX Interface (E and M Interface)
Connecting the N-8000MI unit to a PBX permits conversations to be made between the intercom station and
the telephone, or paging calls to be initiated from the telephone. The N-8000MI is connected to a standard
PBX analog E&M interface using 3 pairs of cables per line. Since the ground return method is employed for
the installation of the system connecting between the trunk and the N-8000MI, use grounding or connect the
grounding cable separately.
N-8000MI
Audio signal: 2 pairs (0 dB*)
Control: 1 pair (E and M)
PBX
analog E&M interface
Grounding
or
Direct connection
Grounding