AFP-400 Installation
PN
50253
:
A2 03/12/96
2-13
Connecting the MPS-400, continued
System Power Harness Connections
J6
J1
J2
J6
optional
Standard
J3
P1
AMG-1 (optional)
FFT-7(optional)
P2
P2
MPS-400
CPU-400
TB2 terminals TB-1 (+) and TB-2 () provide up to 1.25 A of regulated
current for powering notification appliances. TB3 terminals TB-3 (+)
and TB-4 () also provide 1.25 A of current. During system reset, power
remains at terminals TB2 and TB3.
Notification Appliance power
24 VDC
On the MPS-400 Bell Power
Harness, the fork lugs must be
cut off and wires stripped for
connection to the MPS-400
Annunciator Power
(24 VDC)
You can use any of the NAC
outputs, but do not connect an
NAC to the output selected for
powering the annunciators.
Make system connections as follows:
System Harness Connections
For...
Connect...
Internal system power The power harness (75396 for CAB-400AA/75395
for CAB 3 series) from J6 on the MPS to J6 on the
CPU.
AMG-1 power
A power harness from J1 on the MPS to P1 on the
AMG-1. You can feed this same power to other
boards or modules that require internal power.
Signaling between the
CPU and the MPS
A power ribbon (75398 for CAB-400AA/75394 for
CAB 3 series) to J2 on the MPS.
The block diagram shows system power connections between the
MPS-400 and system components.
System Power Connections
System Harness Connections
Power ACS annunciators from the four-wire smoke detector outputs,
or from one of the NAC power outputs. All outputs provide the
filtered, regulated, power-limited source required by the annuncia-
tors. The power run to the annunciators is supervised by the annun-
ciator (for a Loss of Communications error). Annunciator wiring
must run separate from NAC wiring.
