AFP-400 Installation
PN 50253:A2 03/12/96
4-3
Low-Level Audio Distribution (Hardwired Connections)
An AMG appears as an annunciator to the AFP-400 and operates on address
01. Installing an AMG requires programming the AFP-400 and setting an
annunciators switch. The following table contains AMG programming and
switch settings:
For
Set
Single-channel applications AMG-E RECEIVE ONLY switch to Off.
Dual-channel applications
1) AMG-1 Evacuation channel RECEIVE ONLY
switch to Off; and
2) AMG-E Alert channel RECEIVE ONLY switch
to On.
Optional four-wire return
AMG-1 DIP switch to On.
Installing an AMG
O
F
F
1
2
3
4
5
6
7
8
O
F
F
OFF
ON
AMG-1 DIP Switch
You can set an AMG to
receive only (DIP 3) but
you cannot use
the ALL-CALL switch.
P3
P3
P4
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
6 5 4 3 21
Shield
Auto Output
Shield
Shield
Optional four-wire return
Typical Wiring for an AMG-1
Refer to the settings in the table to set the AMG-1 DIP switch. To set a switch,
press the rocker to the On or Off position.
Pin Function
Setting
1
Four-wire audio
supervision
On
Off
2
Tone/Message Select
Table 1 Off
Table 2 On
3
Receive Only
Refer to Installing
an AMG.
4
VRAM Write Protect 1 Refer to Voice
Message Options.
5
VRAM Write Protect 2 Refer to Voice
Message Options.
6
Message Select
Refer to Table 4-1
and Table 4-2.
7
Message Select
8
Message Select
First AA-30
(system or backup amplifier)
Install a 470 ohm impedance-
matching resistor on
terminals 4 and 5.
Last AA-30
AMG-1
Setting the AMG-1
DIP Switch
AMG Programming and Switch Settings