Zhone Technologies Network Device manual Model 8903 Power Supply 120 VAC

Zhone Technologies, Inc. IMACS Product Book, Version 4

Models 8903, 8905 and 8908 power supplies provide -48 VDC talk battery voltage from an AC input voltage. As shown in table 4, the difference between models 8903 and 8905 is the input voltage range. Model 8905 has a much wider input voltage range. Allowing it to operate from any AC line voltage, where as model 8903 has a limited range. Model 8908 can only be used with the 900 chassis. It also has the benefit of a wide input voltage range but with the addition of providing 300 watts of talk battery power.

Table 4—Power Supply Specifications

Model 8901 AC Power Supply 120/240 AC
Input Voltage	Self-detecting, 90VAC to 135 VAC at 60HZ
	175 VAC to 264 VAC at 50 Hz
Input Frequency	47 to 63 Hz
Inrush Surge Current	Max. 12 amp peak at 264 VAC cold start
Output Power	55W Continuous
Maximum Number per system	2
Redundancy	Optional
Ventilation	Convection cooled
Protection	Unit is fused and protected from short circuits and over-
	voltage
Approvals	UL 1459, EN 60950, CSA-C22.2 No.950, CE Mark
Model 8902 DC Power Supply 48 VDC
Input Voltage	-39 to -60 VDC
Inrush Surge Current	Maximum 12 amp at 60VDC
Output Power	55 Watts Continuous
Maximum Number per system	2
Redundancy	Optional
Ventilation	Convection cooled
Protection	Unit is fused protected from short circuits and overage
	Unit is diode protected from reversed polarity
Approvals	UL 1459, EN60950, CSA-C22.2 No.950, CE Mark
Model 8907 DC Power Supply 24 VDC,
Input Voltage	18 to 36 VDC
Inrush Surge Current	Maximum 12 amp at 36 VDC
Output Power:	55 Watts Continuous
Maximum Number per system	2
Redundancy	Optional
Ventilation	Convection cooled
Protection	Unit is fuse protected from short circuits and over-voltage
	Unit is diode protected from reverse polarity
Approvals	UL 1459, EN60950, CSA-C22.2 No.950, CE Mark
Model 8903 Power Supply 120 VAC
Input Voltage	90VAC to 132 VAC
Input Frequency	60 Hz
Inrush Surge Current	Max. 20amp peak at 132 VAC cold start
Output Voltage	-48.0 VDC
Maximum Number per system	2
Redundancy	Optional
Ventilation	Convection cooled
Protection	Unit is fused and protected from short circuits and over-
	voltage
Approvals	UL 1459, UL 1950, CSA-C22.2 No.950

March 2001 Page 19