Table of Contents
Advertisement
3803 MICROPROCESSOR TIPS
ROS Patch Card
The ROS Patch Card, part 8215414:
• Allows emergency repair of defective ROS words. (In this application, the card allows
reconstruction of a ROS word that has a single defective bit.)
• Allows application of an emergency REA to the microcode, until production of a new
MST-A card can support a field bill-of-material.
• Serves as a diagnostic tool.
This card plugs into A2G2 for MP2, B2J2 for MPI.
Reference MLM 80-030 or PF for a description of patch card plugging.
Microprocessor Card Interchange List
The following is a list of cards that can be interchanged between ALUs.
ALUI
B2C2
B2D2
B2E2
B2F2
ALU2
A2N2
A2M2
(watch for feature jumpers)
A2L2
A2K2
The following is a list of cards that can be interchanged if the two-channel switch feature
is installed:
CAUTION:
RemOving these cards may cause channel errors, even with power off. Put
CPU in single cycle mode before removing cards.
B2Q2
with
B2P2
B2R2
with
B2S2
145
Hide quick links:
Advertisement
Table of Contents
