8.5.12 Warden Intercom Control Frame
The Warden Intercom Control Frame houses the following modules:
1. OIS Control CPU
2. OIS Selector Board (up to four boards)
302 6200 SECONDARY CPU
BRDEV3EIC3-A EIS LINE CARD LINES 1-4
BRDEV3EIC3-A EIS LINE CARD LINES 5-8
BRDEV3EIC3-A EIS LINE CARD LINES 9-12
BRDEV3EIC3-A EIS LINE CARD LINES 13-16
Figure 15: OIS Control Frame
8.5.13 OIS Control CPU
This board provides the interface between the OIS selector board and the main CPU. The secondary
CPU has an address setting which is factory set and should not be field adjusted.
Each CPU services four OIS selector boards, i.e. 16 WIP Extensions.
8.5.14 OIS Selector Board
The OIS selector board, BRDEV3EIC3-A, provides the control, audio switching, EAID and ring signal
to the WIP extension and services 4 WIP extensions.
8.5.15 Fan Module
The Fan Module is provided to draw air through the cabinet to maintain an acceptable working
temperature for all the equipment and is controlled by detecting any temperature increase in the
power supply or by receiving a signal or input from the OWS.
To Next Page
Loading...
