Auxiliary Output Ports
Three rear-panel 9-pin connectors are provided on the DCX-127
for digital control of external devices. These output ports are intended
for direct interface to LSTTL circuitry, or via LSTTL-compatible drivers
to relays. Control of power, lights, and annunciators are among the
possible applications. The pin connections of these ports are shown
below. The current drive capability of each bit line is five milliamperes;
the output impedance is 390
W
.
A fourth auxiliary output, J141, is similar to Ports A, B, and C, but
has a 15-pin connector that also in5 V, +15 V, and -15 V
power supplies.
Auxiliary Output Ports
Description
Page 10
DCX-127 Multifunction Module User’s Guide
