user manual

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RAA-E UNIT UPGRADE
ELECTRA MARK11
*. DESCRIPTION
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NECAmerica Inc. Switchins Terminals Division
Engineering Technical Information
ETI NUMBER: MK-016
DATE: APRIL, 1990
This Engineering Technical Information (ETI) bulletin provides the steps necessary to upgrade an existing RAA-E
Unit to revision 2A which involves changing one IC. This upgrade is required in order to use the RAA-E Unit with
the RAA Unit Disk (COMLINK: V2.0 or higher) and the System Data Up/Down Load (DATASAVE) (Stock NO.
700539 for 5.25’ diskette or No. 700540 for 3.5’ diskette) software. RAA-E Units revision 3 or higher do not
require this upgrade.
2. PARTS REQUIRED
2.1 The RAA-E Unit Upgrade Kit (Stock No700537) consists of:
2.1.1 One revision A label.
2.1.2
One revision 2A label.
2.1.3 One V3.1 EPROM IC.
2.1.4 RAA-E Unit Disk (COMLINK) V2.0.
2.2 Anti-static wrist band and grounding strap (3M Model 2213 or similar, locally provided).
2.3 Anti-static mat (3M Model 8501 or similar, locally provided)
2.4 IC Chip insertion/extraction tool capable of handling a 28 pin IC (locally provided).
CAUTION: Microprocessors and some other chips used on the RAA-E Unit are static sensitive devices. Proper
care in handling is necessary to assure that neither the microprocessor nor the printed circuit board (PCB) is
damaged. This procedure minimizes the possibility of damage due to static electricity discharge.
3. SET UP PROCEDURE
3.1 Attach the anti-static mat to earth ground.
3.2 Put on the anti-static wrist band and attach the band to the anti-static mat.
3.3 Unpack the new EPROM IC and labels provided.
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