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ADC-16 USER
GUIDE
4.
Plug the other end of the C-1800 cable into one of the two 37-pin connectors on the STA-U.
5. Make any other connections the STA-U, as required by your application.
6. Replace the cover on the STA-U and tighten the screws,
if
desired.
STA- EX8 Installation
OVERVIEW
The STA-EX8 is a multiplexed expander box with screw connections to the ADC-16 interface signals
and the eight input channels. Up to eight STA-EX8 Boards connect to a single ADC-16 to offer up to
64 fully differential channels. The STA-EX8 has two 12-screw terminal blocks (TBI and TB2) and two
24-screw terminal blocks (TB5 and TB6) allowing access to the ADC-16 interface signals.
TB1 and TB2 provide access for digital input and power signals. TB2 provides two TTL-compatible
digital outputs, two TTL/CMOScompatible digital inputs, and access for power signals. TBl allows
direct connection to the two internal Form C relays on the ADC-16. Note that the signals through TBl
and TE32 run in parallel across the C-1800 cable; this is significant when accessing the power signals.
Figure 2-5 shows the signal assignments for
TBl
and TB2.
TB2
TB
1
,
Figure
2-5. TB1
and
TB2
signals.
TB5 and TI36 accommodate connections to the input channels. In addition, these two terminal blocks
provide extra input channels (see section on input-channel assignments, ahead). Figure 2-6 shows the
signal assignments for TB5 and TB6.
I
I
Figure
2-6. TB5
and
TB6
signal assignments.
Two 37-pin connectors share pin assignments with the ADC-16 Main 1 / 0 Connector. These two
connectors may be used to daisy-chain multiple STA-EX8s. Refer to Figure 2-4 for pinouts of these
connectors.
CHO C H I CH2 CH3 CH4 CH5 CH6 CH7
mlrl
TB4
TB 3
Figure
2-7.
Channel Select Jumper
2 - 6
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