May 2001
System Hardware Manual 5 - 113
A6-324000-642-01 – Release 4.0
May 2001
3.3.3 Connectors
Before programming System Data, the battery must be
connected to CN4 to allow memory retention if a power
failure or brownout occurs. If a brownout or power failure
does occur, and the battery backup circuit is not activated,
System Data resets to the default values, all stations in the
system reset to the default values, and any data
programmed on individual stations is cleared.
The following connectors are located on the MBD-
U13 ETU.
✆ MOH IN For Music on Hold input
✆ PFT For Power Failure Transfer
✆ COM1 For LCR/PC programming
✆ COM2 For SMDR
✆ CN4 For backup battery
✆ CN5 Connects to CN1 of the CLKG-U13
Unit
✆ CN6 Connects to CN2 of the CLKG-U13
Unit
✆ AMP1 MDF cabling connection for slots 1, 3,
4
✆ AMP2 MDF cabling connection for slots 5, 6,
7
✆ CN403 Power Supply connection
On
System boot by EPROM
Off System boot by Flash ROM
SW3-2 Description
Off Not Used
Pressing SW2 interrupts all service and causes
a second initialization. This switch should not
be used in an operating system unless
absolutely necessary.
!
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