2.2
Connect the incoming line to the AT87
module, using either the grey/green terminal
blocks
(see section 2.3)
or the 3.5mm socket (PS
models only). Run cable from the AT87 module,
using either orange/green terminal blocks or
male 3.5mm plug to the equipment meant to be
protected.
See
Wiring
Guide
for
more
information.
Adhering to these instructions
guarantees maximum performance of
this Protection Device.
IMPORTANT SAFETY
INSTRUCTIONS CAUTION:
1. Never install CCTV wiring during
a lightning storm.
2. This product is intended for
INDOOR USE ONLY.
3.
Risk of Electric Shock - Protector
is not to be used if physically
damaged.
1. INSTALLATION
1.1
Rea d
an d
underst and
a ll
instructions.
1.2
The 1-in-1 AT87 modules can be
installed individually, grounding the unit
using the ground stud on the underside of
the mounting plate. Multiple AT87 modules
can also be installed on 2-in-1 and 3-in-1
mounting plates, all sharing a common
ground through the grounding stud,
suitable for surface mount installations. In
planning an installation, location of the
AT87 unit in close proximity to the correct
ground point is essential for protection
performance. The correct ground point is
defined as the ground reference used by
the system to be protected. In most
applications, this is AC power ground.
MINIMIZE the distance between the AT87
unit and the identified ground point as
much as possible.
2. STAND-ALONE POWER MODULE
INSTALLATION
2.1
To install 1-in-1 AT87 12V 24V or
120V modules as stand-alone units, attach
a minimum #14 AWG ground wire with
the supplied nut, washer, and ring
terminal to the ground stud on the
underside of the mounting plate
(see
figure 1).
The metallic ground stud is the
unit’s Earth connection.
2.3
AT87 MODULES WITH CAGE CLAMP
TERMINALS:
The cage clamp mechanism used on
these modules offers THE MOST SECURE wire
connection available. The quality of connection is
significantly
better
than
standard
screw
terminals.
GROUNDING
The mounting plate must be connected to
the ground reference used by the system
being
protected.
In
a
headend
environment, this grounding point may
be the ground bar in the AC power panel.
Ground leads longer than 12” are not
suggested.
INDEPENDENT GROUNDS
Surge protection devices must not be
connected
to
independently
derived
grounds.
WARNING
The grounding lead must be as short as is
practically possible. Minimize length to
the inch. The ground wire should be a
minimum #14 AWG for single-module
installations and #10 AWG for multi-
module installations.
4. WIRING GUIDE
4.1
ALL MODULES:
Ensure all modules are oriented with
protected ends toward the equipment and
unprotected ends towards the incoming
line.
See ground wire installation instructions
in section 2.1 for 1-in-1 models and 3.1 for
2-in-1 and 3-in-1 models.
4.2
POWER MODULES:
AT87 power protection modules use
colored terminal blocks to determine
ground and protected/unprotected ends.
Connect field cables to the end with unprotected
GREY terminal blocks. Connect cables from
the equipment to be protected to the end
with ORANGE terminal blocks. Connect
the ground wires to the GREEN terminal
blocks on their respective ends. For
AT78120 modules, use “1” for “LINE,” “2”
for “NEUTRAL,” and “G” for “Ground” on
both incoming and outgoing wires. For
AT87012 and AT87024 modules, use “1”
for negative (-), “2” for positive (+), and
“G” for “Ground” on both incoming and
outgoing wires.
(see figure 3 on reverse
side)
.
3.3
COAX MODULE INSTALLATION
Connect the incoming line to the port marked
“LINE” on the AT87 coax module. Run cable from
the AT87 port marked “EQUIP” to the equipment
meant to be protected.
See Wiring Guide for more
information.
3.4
PTZ MODULE INSTALLATION
Connect the incoming line to the side marked
“UNPROTECTED” on the AT87 PTZ module. Run
cable from the AT87 port marked “PROTECTED”
to the equipment meant to be protected.
For wire
insertion instructions, see section 2.3 “AT87
MODULES WITH CAGE CLAMP TERMINALS.”
See Wiring Guide for more information.
3.5 CAUTION: The current-limiting features of
CCTV surge protectors could be rendered
inoperable if improperly installed or not properly
grounded
2.3.1 Insert a small screwdriver into the upper
hole of the terminal block
(see figure 2).
2.3.2 Push screwdriver in and lever away from
the lower hole with moderate force. This will
visibly open the cage clamp in the lower hole.
2.3.3 Insert wire stripped at 0.250” into the
lower hole. Once wire is positioned correctly, remove
screwdriver from the upper hole. The wire is now
secure.
3. AT87 2-IN-1 AND 3-IN-1 INSTALLATION
3.1
Multiple AT87 modules can be combined
onto a single mounting plate, all sharing a
common source of ground for proper surge
protection. Attach a minimum #10 AWG ground
wire with the supplied nut, washer, and ring
terminal to the ground stud on the underside of
the mounting plate
(see figure 1).
The metallic
ground stud is the unit’s Earth connection.
3.2
POWER MODULE INSTALLATION
Connect the incoming line to the AT87 module,
using either the grey/green terminal blocks
(see
section 2.3)
or the 3.5mm socket (PS models only).
Run cable from the AT87 module, using either
orange/green terminal blocks or male 3.5mm plug
to the equipment meant to be protected. See
Wiring Guide for more information.
