1-13. DESCRIPTION OF TEST CONSOLE TEST BENCH 2A2 (cont)
h. MULTIPROGRAMMER ASSEMBLY 2A2A6
(1) The multi programmer assembly 2A2A6 (Hewlett Packard model 6940B) is the
master control unit for the multiprogrammer system.
It consists of a multi-
programmer rack assembly, two slides, two adapters, 18 circuit card assemblies (CCA)
and a dc power supply.
(2) The multiprogrammer rack assembly consists of a multiprogrammer master
mainframe and a rack flange kit (two flanges for cabinet support and a filler
The mainframe consists of a hinged-front control panel, a 20-slot card
cage, and a rear panel.
(a) The front panel (access door) contains 20 pushbutton switches, a power
ON rocker switch, and a screwlock fastener, which when released, allows the access
door to swing open for access to the CCAs.
(b) Eighteen of the 20 card cage slots are used. Seventeen of the 18 CCAs
contain electrostatic sensitive components and require protection from static dis-
charge anytime the CCA is handled.
(c) The rear panel contains three fuse assemblies F1 thru F3, an input
power receptacle, and two data connectors (J1 is DATA INPUT and J2 is DATA OUTPUT).
(3) The purpose of the multiprogrammer assembly 2A2A6 is to communicate with
the system computer and multiplex the computer I/O channel signal for use in the E/O
test bench set.
Multiprogrammer Assembly Characteristics:
Data Word Transfer Rate:
20K word per minute
Physical Position of Unit
30° max from horizontal
Weight: 40 lb
115v +11v -7v, 48 Hz thru 440 Hz
Operating Temperature: 32° thru 131°F