Zhone Technologies IMACS Network Device User Manual

Page 22

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Zhone Technologies, Inc.

IMACS Product Book, Version 4

March 2001

Page 18

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.

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