Micromod Micro-DCI: 53ML5100A LOADING STATION - Manual (Page 20)

2.4 CONNECTIONS
2.4.1 PREPARATORY
The 53ML5100 Manual Loading Station can be configured for two analog inputs (ANI0&1) and two
analog outputs (ANO0&1). Therefore, prior to making electrical connections, the particular instru-
ment configuration should be determined with assigned inputs and outputs identified to assure
proper signal routing.
2.4.2 WIRING PROCEDURE
Provisions for electrical connections are located at the rear of the instrument case. Under ideal
conditions shielded cable may not be required. In noisy locations all system input, output, and
power wiring should be enclosed in electrical conduit. System connecting cables (except for power
cables) should be fabricated from 2-wire shielded signal cable. Signal transmission distance
should not exceed the limit specified for the particular transmitter (refer to applicable technical lit-
erature provided for the respective device). Polarity must be observed when connecting the re-
mote transmitters to the instrument.
The instrument has a vertically mounted terminal strip (TB1) for signal connections and a horizon-
tally mounted terminal strip (TB2) for power wiring. Both terminal strips are located on the rear ter-
minal board of the instrument case.
SNAP-OUT TERMINAL CONNECTORS
Both terminal strips, TB1 and TB2, have removable plug-in connectors.
The upper connector for TB1 has screw lugs 1 through 12 and the lower
connector has screw lugs 13 through 22. All of the screw lugs are on a
single connector for TB2. To remove a signal connector, grasp it
securely on both sides with the thumb and forefinger, rock it gently
from top to bottom (not side to side) and pull it straight out. To remove
the power connector, grasp the sides firmly with the thumb and
forefinger, rock it gently from side to side and pull straight out. Each
connector is keyed and has one scalloped side as an aid to proper
insertion alignment after the wires are connected. (See Figure 1-2.)
NOTE
The screw lugs on the back of the instrument are designed for 12 - 24
AWG wire. It is important that the wire be stripped to expose 1/4 inch of
conductor before installation.
WARNING
Instruments that are powered from an ac line service constitute a
potential electric shock hazard to the user. Make certain that these
system ac power lines are disconnected from the operating branch
circuit before attempting electrical connections.
Section 2. Installation
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