NEC UNIVERGE NEAX 2000 IPS Reference Manual page 44

Chapter 2 System Architecture
System Power Supply and Cooling Fan
AC/DC Power Supply
The AC/DC Power Card is mounted in the rear side of each MODULAR CHASSIS. The AC/DC Power
card provides power to all circuit cards, which are resided in the MODULAR CHASSIS.
AC power requirements are as follows:
Input Voltage: 85 to 264VAC, 50/60 Hz (Auto sensing 100V/200V selection)
Description
PZ-PW131
Back-up Power
UPS or battery backup (with external battery) is available for backup power for AC power failure. In
case of battery backup, sealed type battery should be used. The open type battery is not available
because of AC/DC power specifications.
Battery Backup Time
10 minutes (Built-in battery)
30 minutes (External battery)
3 hours (External battery)
Ring Generator Unit (RGU)
The RGU provides ringing supply to analog SLT (PN-4LCAA is no longer required); however, it cannot
ring more than 6 analog SLT's per MODULAR CHASSIS simultaneously. Therefore, the simultaneous
ringing has to be limited by office data setting.
Description
PZ-PW139 MODULAR CHASSIS
Cooling FAN
The cooling FAN is mounted at the right side of each MODULAR CHASSIS. The FAN should be
replaced every 4 years in order to ensure the cooling system.
Description
109P0624H
7D09 FAN
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Qty
1 per MODULAR CHASSIS
Required Battery Capacity
Ring Generator Unit (RGU) Card
Qty
Qty
1 per MODULAR CHASSIS
AC/DC Power Card
AC/DC Power Supply
Output:+5 V, 5.5A, -27 V, 3A
Required Battery Capacity
12VDC, 0.8AH x 2
12VDC, 2.2AH x 2
12VDC, 12AH x 2
Ring Generator Unit
Ring Voltage: 85/75Vac
Ring Current: 0.05A
Cooling FAN
Each Modular Chassis is equipped with a
Cooling Fan this part is for replacement only
UNIVERGE 2000 IPS Request For Proposal (RFP) Reference Guide
NEAX
Remarks
Remarks
Remarks
Issue 6