38UL-2000-DC
Page 3
INSTALLATION
Please read through this document in its entirety before proceeding with installation.
1. DISCONNECT power from all equipment before proceeding with installation.
2. Mount the control unit in a suitable location that allows the user to easily remove the lid of the
enclosure for wiring access. When possible, select a location that is not directly beside high energy
transformers or large inductive relay housings. It is recommended to allow for a minimum of 2.0”
clearance on all sides of the unit’s housing & mounting plate. The power and control wiring exiting
thru the provided cord grips should have ample room to bend without excessive stress. It is also
important that any coax cable connected to the TNC connector have room to bend without “kinking”.
3. Install relay wiring to terminal strip (TER1).
4. Attach supplied rubber duck antenna to TNC connector on the right side of the unit.
5. Connect supplied DC power input cable to your external power source.
Note 1: (6) #10 thru holes & (4) 1/4-20 thru holes are provided on the mounted plate to secure the unit)
Note 2: The recommended power/control wire sizes to the terminal strip ranges from 24 AWG
(0.205mm2) (min) to 18 AWG (0.823mm2) (max).
TERMINAL STRIP WIRING
Terminal 1
Negative (-) 10
– 24 VDC
Terminal 2
Positive (+) 10
– 24 VDC
Terminal 3
CH1 Dry Contact Input (Common)
Not used on this model
Terminal 4
CH1 Dry Contact Input
Terminal 5
CH2 Dry Contact Input (Common)
Terminal 6
CH2 Dry Contact Input
Terminal 7
N/O Relay 1
Terminal 8
C Relay 1
Terminal 9
N/C Relay 1
Terminal 10
N/O Relay 2
Terminal 11
C Relay 2
Terminal 12
N/C Relay 2
Terminal 13
N/O Relay 3
Terminal 14
C Relay 3
Terminal 15
N/C Relay 3
Terminal 16
N/O Relay 4
Terminal 17
C Relay 4
Terminal 18
N/C Relay 4
Summary of Contents for 38UL-2000-DC
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