ISD Component Installation
Receiver Installation
Receiver Installation
1.
One Receiver is required per site and it is mounted in the vertical position (antenna up) on the outer wall of the
same building housing the TLS RF. The Receiver is attached to its mounting bracket with #10 x 1/2” taptite
screws from its install kit (see Figure 20). The L-bracket is then mounted on the outer wall of the building using
appropriate fasteners (customer supplied). If the Receiver will be exposed to the weather, attach the L-bracket
to the mounting surface inside a weatherproof enclosure. This enclosure is not required when mounting the
Receiver under a roof overhang and shielded from the weather.
NOTE: When locating the mounting position, keep in mind that the RS-485 cable connecting the Receiver to
the TLS RF must be less than 250 feet in length. Avoid placing the Receiver near motors (e.g., power roof
vents), fluorescent lighting (min. 1 foot separation), pumps, welders.
Locate the Receiver on the same side of the building as the underground transmitters. If there are additional
tanks either too far away or on the opposite side of the building, the Repeater can be located either on a
structure near the remote tanks or on the opposite side of the building facing those tanks - see Repeater
installation.
The Receiver is only suitable for use in a non-hazardous location.
2.
Run the RS-485 cable (Belden #3107A or equiv.) from the TLS RF through the building’s wall to the Receiver.
Caulk the cable where it passes through wall openings. Use cable clamps at appropriate intervals to secure
the cable to the walls.
3.
Note that the Receiver cover label indicates the cord grip to be used for the RS-485 cable from the TLS RF
and the cable to the Repeater (if used). Remove the cover of the Receiver and set it aside.
4.
Set S1 and S2 DIP settings as desired (ref. Appendix B, Figure B-2). NOTE: set all dip switches prior to
attaching the TLS RF RS-485 cable as the dip switches are only read during power up.
5.
Slide the nut over the cable. Choose the correct size bushing and slide it over the cable. Dress the cable
jacket according to the dimensions in Figure 18. Insert the cable into the appropriate opening at the bottom of
the housing. Insert each wire into the appropriate terminal and tighten. Leave a small amount of slack in each
wire. Slide the bushing into the bottom of the housing. Hand tighten the nut.
6.
Note that there are two twisted pair color-coded wires in the cable (e.g., a white with blue stripe and blue with
white stripe pair and a white with orange strip and orange with white stripe pair). One of the pairs is for RS-
485 communication (- & + terminals) and the other pair is for Receiver power (+15 Vdc & Gnd). Using
Figure 21 as a guide, attach the wires of the two twisted pairs to the RS-485 terminals.
Record which wire attaches to each terminal to help you attach the other end of that wire to the identically
marked terminal in the TLS RF.
19-27
ARB Approved IOM 19 - TLS RF Wireless 2 System (W2) Installation and Maintenance Guide - Executive Order VR-203 and VR-204
