User's Manual

Confidential & Proprietary 80/87
When you insert DOU into OEU, insert the unit into the top DOU1 first. For unused slots,
you nedd to install BLANK UNIT into them.
5.4.5 Consumption Power of OEU
OEU has -48V DC Power supply in it. ODU can be equipped with up to two DOUs. Depending
on the quantity of DOU, power consumption is varied.
The following table shows power consumption of OEU:
Part Unit Consumption Power Remark
Shelf
EWDM
ERF
Common Part
EPSU
12W
OEU_4 DOU 1 EA 23W
OEU_8 DOU 2 EA 33W
5.5 System Operation and Alarm Status
This section describes operation of SMDR-NH124. It deals with procedures and operations for
normal system operation after installation. It also describes operations per unit and interworking
methods.