22
MASTERseries - Release 7.0
MASTERseries Quick Start Guide
8-Slot Chassis Installation
Power
The 8-slot chassis is available as a DC powered unit. The wide-ranging DC power
supply is used for both -48 and +24 VDC applications. All power supplies are
redundant and load sharing.
LEDs
The LED states of both power supplies
.
Power Supply Installation
To install the first power supply:
1. Remove the blank faceplate from power supply in slot 1.
2. Slide the first power supply into the empty power supply slot.
3. Press firmly to make full contact with the connector in the back of the chassis.
4. Tighten the screws found on the front of the power supply.
5. Install a second power supply (for redundancy) into power supply slot 2, as in steps 1-4.
DC Power
The power entry modules provide DC power
protection and isolation.
z
Each input has its own return.
z
The recommended wire gauge for
connecting power is 16 to 18 gauge.
NOTE:
When using two power supplies, the input power must be connected to both A and B
feeds. If you only power the A feed and are using two power supplies, you will need to jumper
between input A and input B and also between return A and return B. Make this jumper the
same gauge as the feed.
DC Configurations Power Supply
Wattage
Input Power Feed(s)
Fuse
±20 to 60 VDC
75W
Dual
5A, 250 V
LED
State
Description
Power
Off
DC input missing or failure
Green
DC input present
-
24/48 VDC
75 W
POWER
+24/-48 DC Power Supply
DC Line Input
Power Entry
Alarm Contacts
Panel
Fuses