Battery Backup (Optional) - Optex Fiber SenSys Terrain Defender TD 100 Installation Manual

These individual items can be installed alongside each other, DIN rail mounted with accessory
backplates, or generally mounted in the configuration most convenient for the specific site's
needs.
The typically black "Line" cable for 120 – 240 VDC and "Neutral," typically white, would wire to
the transformer, as shown in Figure 74. Transformer connections are solder style, but the pre-
attached transformer leads may be utilized. The transformer input cable should have 16 AWG or
greater conductors. Verify AC power input using a multimeter prior to soldering. Once soldered,
testing without potentially impacting the transformer is impossible.
The "Ground" green wire can be connected to the corner bolt on the transformer using a crimp-
on ring terminal or the provided grounding pigtail to the bottom of the right two terminal blocks
on the AC connection points, as shown in
All LPS5 power connections require 18 AWG wire or greater. The "Line" and "Neutral" cables
wire to the LPS5's AC terminals. The AC fail and low battery relays may be wired for
supervision on the LPS5. These relay outputs are dry form C contacts. Lastly, the LPS5's DC
terminals would wire to the DP 's AC/DC input terminals at the bottom of the board. The LPS5
DC voltage can be slightly adjusted using the VR1 trim pot (blue with white center).
The DP4's fused 24 VDC output terminal connections use two cables, each with two 20 AWG
sub-cables. These are labeled 1A and 1B, 2A and 2B, and so on. Terminals marked A are
"Positive," typically red, (+), and terminals marked B are "Negative," typically black, (-). Using
the first two output pairs, install the cables running to the TD100 SUMA TX and RX enclosures
as shown in Figure 74. Fuses on outputs 3 and 4 may be used as spares and have the same
fuse rating.

Battery Backup (Optional)

The TD24PSU, unlike the TD48PSU, offers the ability to utilize a battery backup feature
where two 12 VDC batteries are connected in series to the LPS5 module.
To determine the type of batteries to purchase, first establish or verify the site's required
Page 56
Figure 69. Fused DC power distribution board (DP4)
Figure 74.
Confidential – Limited Distribution