NEC AMERICA, INC.

BUSINESS SYSTEMS DIVISION

ET1 NUMBER: MK-094

DATE: AUGUST, 1987

ELECTRA MARK11

DSWBLF CO ADD-ON MODULE UPGRADE

1.DESCRIPTION

This Engineering Technical Information (ET11 procedure describes the steps necessary to upgrade existing EDE-30-1 Revision A ( ) units to revision B. EDE-30-1 revision B units can be used as either a DSS/BLF Console or as a CO ADD-ON Module.

2.LIMITATIONS

Only EDE-30-1 units in boxes marked with a UP on the outside of the box, after the revison level, can be upgraded to revision B using the information contained in this ET1 procedure.

3.PARTS REQUIRED

3.1Microprocessor D75104CW 063 and revision labels provided with each EDE-30-l unit by NEC America, Inc.

3.1.1Three revision B labels.

3.1.2One revision 3 label.

3.2Anti-static wrist band and grounding strap (3M Model 2213 or similar, locally provided).

3.3Anti-static mat (3M Model 8501 or similar, locally provided).

3.4Chip insertion/extraction tool (locally provided).

CAUTION: Microprocessors and some other chips used on the EDE-30-1 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.

4.SET UP PROCEDURE

4.1Attach the anti-static mat to earth ground.

4.2Put on the anti-static wrist band and attach the band to the anti-static mat.

4.3Unpack the new microprocessor and labels provided.

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NEC nd-20292 manual Electra MARK11 Dswblf CO ADD-ON Module Upgrade