14. TKU2
:
Same as
[TKU1]
, but it is the Connection Slot for the
SECOND
Trunk
Unit to be connected.
15. TKU3
:
Same as
[TKU1]
, but it is the Connection Slot for the
THIRD
Trunk
Unit to be connected.
16. SW2
:
The audio signal level control for both intercom and external paths. If
the
THIRD
Trunk Unit is installed, then
“1 ~ 4”
must be
SWITCHED
OFF
. (The default should be
ALL ON
)
17. EXTMP :
For External Paging Equipment and External Music Source
connection.
18. SVR
:
Variable Resistor to adjust the volume of the External Melody Source
output to be heard by [BGM] or [MOH].
19. MFC
:
Connect to
[MFC]
position on
A6MFCA
.
20. MOH
:
Music Source selection for Music On Hold.
21. BGM
:
Music Source selection for Back Ground Music.
(The Jumper
Selection is the same as MOH)
22. RSC
:
Connect to
[RSC]
position on
A6RSCA
as the
FIRST
RS232
interface in the system.
23. BAT
:
It is located by
“3 Vdc, 180 mA/H”
Li-Battery to back-up the system
programming data during AC power Off.
24. SW1
:
To control
Li-Battery
back-up is
ON
or
OFF
.
RPC
:
Either connect to
[RPC]
position on
A6RPCA
or connect to
[RSC]
position on
A6RSCB
as the
SECOND
RS232 interface in the system.
Summary of Contents for AV 32A
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Page 20: ...A6MBUA MOTHER BOARD UNIT Figure 4 A6MBUA Mother Board Unit ...
