TEST CONSOLE TEST BENCH 2A2 (cont)
MULTIPROGRAMMER ASSEMBLY 2A2A6 AND MULTIPROGRAMMER EXTENDER ASSEMBLY 2A2A11
The multiprogrammer assembly is the master control unit for the
The multiprogrammer extender assembly increases the system
Refer to FO-24 for a block diagram of multiprogrammer assembly
2A2A6 and multiprogrammer extender assembly 2A2A11.
(a) The multiprogrammer assembly consists of hinged-front control panel, a
20-slot card cage, a dc power supply, and a rear panel containing input and output
data and ac power connectors.
Of the 20 card slots, four (slots 100, 200, 300, and
500) contain interfacing, data processing, and control CCAs, 13 (slots 400 thru 410,
412, and 413) contain input/output CCAs, and one (slot 600) contains a voltage regu-
Slots 411 and 414 are empty.
(b) The multiprogrammer extender assembly is physically similar to the mul-
tiprogrammer assembly, but has no provisions for local programming. Its control panel
contains only an ON/OFF power switch and associated indicator lamp.
The card cage, dc
power supply, and rear panel are the same, however, only the extender input CCA A1
(slot 100), input/output transfer CCA A2 (slot 200), logic and timing CCA A3 (slot
300), and six input/output CCAs A4 (slots 400 thru 403, 408, and 409) are used. The
remaining slots are empty.
(2) Multiprogrammer Assembly
(a) Data and control signals are exchanged between the computer and multi-
programmer assembly through connector J1.
Computer inputs (16 data bit lines and a
control gate line) are routed through adapter CCA A7 to the back-plane wiring of
interconnect board A9.
Input CCA A1 (slot 100) is the first plug-in CCA to receive
the inputs, which are applied to identical termination networks.
minimize noise and ringing on transmission lines.
(b) After being interfaced, the computer inputs are applied to remote/local
CCA A2 (slot 200).
The remote/local CCA selects either the computer or the local
control panel as the programming source and distributes the data to the logic and