Service manual

Relay Driver
Description
Figure 4-1 shows a simplified diagram of the relay driver and decoder
circuits. As shown in the figure, the relays on the component assembly are
arranged into 16 banks of 16 relays. Each bank of relays switches 16
columns to a single row.
The relay contacts are arranged into four 4 X 16 submatrixes. These
submatrixes are then arranged into the appropriate matrixes by each
terminal module. The latching relays are double pole and switch both HI
and LO lines.
Figure 4-1. Relay Driver/Decoder Simplified Diagram
58 Service Agilent E1465A/66A/67A Service Manual