Zhone Technologies Network Device manual Imacs Minimum Clearances 600 800 900, Power Supplies

Zhone Technologies, Inc. IMACS Product Book, Version 4

All the IMACS units are convection-cooled and require some minimum clearances for optimum operation. Clearance requirements also account for distance required for removal and insertion of cards from/into the chassis. The minimum clearances are shown in Table 2.

Table 2—IMACS Minimum Clearances

		600		800		900
Front	15”	(38 cm)	15”	(38 cm)	15”	(38 cm)
Back	0”	(0 cm)	15”	(38 cm)	0”	(0 cm)
Top	2”	(5 cm)	2”	(5 cm)	2”	(5 cm)
Bottom	2”	(5 cm)	2”	(5 cm)	2”	(5 cm)

In all cases, the unit must be installed in an environment that meets the following specifications:

AC power (120VAC):	90 VAC to 135 VAC
AC power (120/240 VAC):	175 VAC to 264 VAC
DC power (-48 VDC):	-42 VDC to -60 VDC OR-39VDC TO -60VDC
DC power (24 VDC):	20 to 32 VDC OR -18VDC TO 36 VDC
Power consumption:	125 Watts
Operating temperature:	0oC to 50oC (41oF to 121oF)
Storage temperature:	-20oC to 80oC (-4 oF to 176oF)
Operating Rel. Humidity:	5% to 85%

The IMACS Universal Enclosures conform to the following regulatory standards shown in Table 3.

Table 3—IMACS Compliance With Regulatory Standards

ANSI 310-D	Racks, Panels, and Associated Equipment
UL 459	Telephone Equipment
Bellcore GR-63-CORE	Network Equipment-Building System (NEBS), Level 3
	Requirements: Physical Protections
Bellcore GR-1089-CORE, Issue 1	Electrical compatibility and electrical safety generic criteria
	for network telecommunications equipment
Bellcore TR-NWT-000295 Issue 2	Isolated Ground Planes: Definition and Application to
	Telephone Central Offices
CE EN 500 81-1	Electromagnetic compatibility generic emission standard
	Part 1 Residential, commercial and light industry
CE EN 500 82-1	Electromagnetic compatibility generic immunity standard
	Part 1 Residential, commercial and light industry
CE EN 60 950/A2	Safety of information technology equipment including
	electrical business equipment
UL 1459	UL Standard for Safety of Telephone Equipment
CSA C22.2, No. 950, DOC CS03	Safety of information technology equipment including
	electrical business equipment
FCC Part 68 – Subpart B	Requirements for Connection of Terminal Equipment
	Systems and Protective Apparatus to the Telephone Network
IEC 297-1	Racks, Panels, and Associated Equipment
FCC Part 15	Subpart B

Power Supplies

The IMACS has six power supplies and two ring generators, which can be installed or configured depending on the application. Power supply models 8901, 8902 and 8907 provide +/-5VDC and +/-12VDC. As shown in table 4, the main difference between these models is the input voltage.

March 2001 Page 18