IBM SG24-4817-00 manual Mechanical Specifications, Power Supply, General Power Specifications

This soft copy for use by IBM employees only.

Table 16 (Page 2 of 2). Environmental Specifications of the IBM 8285 Nways ATM

Workgroup Switch

Description	IBM 8285 Base Unit	Base plus Expansion
Acoustic	5.8Bel	6.0Bel (with Expansion)

6.1.2.2 Mechanical Specifications

The 8285 switch is designed to be either rack-mounted or to rest on a table-top. Your mount must be able to support at least the following specifications, listed in Table 17, with the appropriate safety factors.

Table 17. Mechanical Specifications of the IBM 8285 Nways ATM Workgroup Switch

Description	IBM 8285 Base Unit			Base plus Expansion
Width	440	mm (17.3	inches)	440	mm (17.3	inches)
Depth	508	mm (20.0	inches)	508	mm (20.0	inches)
Height	133.3 mm (5.25 in. or 3U)			133.3 mm (5.25 in. or 3U)
Weight (empty)	12.8 kg (28.2 lbs)			12.8 kg (28.2		lbs)
Weight (fully loaded)				19.4 kg (36.8		lbs)
Mounting Clearances
Front:	100	mm (4 inches)		100	mm (4 inches)
Back:	300	mm (12 inches)		300	mm (12 inches)

6.1.2.3 Power Supply

The IBM 8285 Base Unit has a universal power supply, as does the 8285 Expansion Chassis. The power supplies are currently identical although this can be expected to change in the future.

•General Power Specifications

Table 18 shows the general power specifications of the IBM 8285 Base Unit and the 8285 Expansion Chassis.

Table 18. Power Supply Specifications of the 8285

Description	Base Unit	Expansion Unit
Current Draw
- at 100V	3.6A	3.6A
- at 240V	1.9A	1.9A
Surge Current	40A	40A
Leakage Current	2.7mA	2.7mA
Caloric Value
- Kcal/hr	44	44
- BTU	174.59	174.59

Table 19 shows the anticipated power specifications of future models of the

IBM 8285 Base Unit and the 8285 Expansion Chassis.

Table 19 (Page	1 of 2). Power Supply Specifications of Future 8285 Models
Description		Base Unit	Expansion Unit
Current Draw
- at 100V		2A	3A
- at 240V		0.85A	1.25A

Chapter 6. IBM 8285 Planning and Installing 93