Sigma SQC-122c manual Chapter Options Introduction, Option Card, Full Rack Extender Installation

Chapter 4 Options

4.0Introduction

This section covers the installation of optional accessories.

4.1Option Card

No option cards are available for the SQC-122c, although the rear panel has locations for an expansion card. To expand the SQC-122c, the unit can be upgraded to an SQC-222. Contact Sigma for information on this factory-only upgrade.

4.2Full Rack Extender Installation

The Full Rack Extender option (PN 900-007) mounts a single SQC-122c into a full width 19” rack space.

Follow the steps below to assemble the extender and mount the SQC-122c:

Remove SQC-122c	Determine on which side of the SQC-122c you want to attach
Mounting Ear	the rack extender. If a rack mount ear is attached to the
	SQC-122c on that side, remove the two 10-32 flat head
	screws that mount the ear, then remove the rack mount ear.
Assemble the	Assemble the extender “box” using the eight 6-32 flat head
Extender	screws, two end panels, and two main panels. Thread two
	socket head captive panel screws from the inside of one side
	of the extender. Continue to thread the captive screws until
	their threads are completely exposed on one side.
Attach the Extender	Place the extender next to the SQC-122c, and thread the
	captive screws into the SQC-122c threaded holes that were
	previously used to mount the rack ear. Tighten the captive
	screws to secure the extender to the SQC-122c.
Attach the Mounting	Attach the mounting ear previously removed from the SQC-
Ears	122c to the extender using the same10-32 flat head screws. If
	rack mount ears were not already attached to the SQC-122c,
	attach the other mounting ear also.
Mount the	Slide the entire assembly into an empty 5 ¼” high 19” rack
SQC-122c	mount space. Secure the assembly with four 10-32 rack
	screws (not supplied).

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