LTC 8561 |
Instruction Manual
|
Installation
EN
| 8
Bosch Security Systems | January 19, 2006
4
INSTALLATION
CAUTION: This installation should be
performed by qualified service personnel only in
accordance with the National Electrical Code,
Canada Electrical Code, or applicable local
codes.
All units are 50/60 Hz line frequency compatible. All
units have low voltage DC lens drivers (6 volts or 12
volts selectable) for focus, zoom, and iris with
adjustable speed. There are also four auxiliary outputs.
One is a solid state relay with zero crossing switching
fixed to the same voltage as the pan/tilt output. The
others are relays which can supply voltage through
contacts (normally open or normally closed) to control
lights or other devices at the remote site. Auxiliary
supply terminals provide power which is fuse protected
at the voltage of the pan/tilt output.
4.1
Bench Setup
NOTE: Some of the setup may be done at an
electronics workbench prior to installation, making
field installation easier, especially at inaccessible
locations.
Before starting, read this document to get an
understanding of what is to be done.
NOTE:
Inside the lid of the receiver/driver is a
summary wiring guide which may aid in the
installation.
On a suitable workbench, which has a neutral static
work top, open the receiver/driver unit and remove
1 spare fuse attached to the chassis (either T1A fuse
for the LTC 8562/60; T2A fuse for LTC 8566/60,
LTC 8561/50, and LTC 8564/20; or T0.4A fuse for
the LTC 8566/50).
CAUTION: Be sure to observe all safety
measures for static control when working with
this unit while out of its enclosure. Otherwise,
static damage may result.
4.2
Preparing the Enclosure
When performing the following steps, it is suggested
that the internal parts be removed from the enclosure.
This is made easy by removing the metal frame that all
components are attached to:
1. On a flat surface, open the box containing the
receiver/driver unit.
2. Carefully remove the unit from the box.
3. Place the base part of the receiver/driver on the
bench, face up, with the circuit board showing.
Use a Phillips screwdriver to remove the four
corner screws.
4. Using the thumb and forefinger of both hands,
reach down on the right and left sides of the
unit and lift out by the metal.
CAUTION: Do not handle the unit by the
circuit board, because this may result in
physical damage to the unit.
5. Using a hole saw or punch, make holes through
the enclosure suitable to the specific installation
of the unit. Install through the holes the proper
types of glands or conduit connectors to
maintain weatherproof integrity of the box (see
Instructions for Installation of Conduit and
Grounding of Equipment in Nonmetallic
Enclosures
provided with the enclosure).
ATTENTION: Holes for power, pan/tilt and
auxiliary connections should be located along
the lower half of the enclosure base. Holes for
lens and signal connections should be located
along the upper half of the enclosure base. This
should be done so the power, pan/tilt, and
auxiliary cables can be separated from the lens
and signal cables.
6. Before reinstalling the unit in the plastic
enclosure, refer to the section about pan/tilt
voltage selection.
7. Refit the metal frame by following the
procedure in Step 4 followed by Step 3. Make
sure the mounting screws are tight, the metal
frame does not move, and the door opens and
closes properly.
4.3
Setting Option Switches
Four 4-position DIP switches are located on the main
printed circuit board. Each switch is numbered and the
OFF side is indicated. Using these switches, the
options described below and in the following sections
may be selected. If the receiver/driver has been in
operation and a switch is changed, the main AC power
should be turned off for 10 seconds then turned on to
reset the unit.
