NEC NEAX 7400 ICS - 007-23 MDF Cross Connection for External BGM Sources

AD-25182501 CHAPTER 3
Page 101
Revision 1.0.1
NAP- 200-007
Sheet 38/42
Termination of Cables on MDF
(11) External Background Music (BGM) Source
The cross connection for customer-owned external BGM sources is shown in Figure 007-23.
Note:
A maximum of 10 BGM sources can be provided in the system.
Figure 007-23 MDF Cross Connection for External BGM Sources
ADDITIONAL:
The examples shown in Figures 007-18 to 007-20 also apply to other auxiliary equipment such
as, Announcement Machines, etc. When On/Off control circuits are required, the isolator must
also have a relay fitted.
BGM SOURCE
#0
2929
4
4
2828
3
3
2727
26
26
2
1
1R026T0
2R127T1
3R228T2
4R329T3
(P)
26T01R0
27T12R1
28T23R2
29T34R3
LEN0000
LEN0001
LEN0002
LEN0003
LTC0 (J)
MDF
1
2
PIM0
PPN-4COT/PN-2COT
LT00
LTC0
J
T3
R3
T2
R2
T1
T0
R0
R1
LEN0000 (No. 0)
LEN0001 (No. 1)
LEN0002 (No. 2)
LEN0003 (No. 3)
BGM SOURCE
#0
#1
AUSTEL - approved Line
Isolation Units. (If On/Off
control is required, use the
same method as for external
Music-On-Hold).