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VISTA-120 Installation and Setup Guide
Installing the Keypads
•
Two Line Alpha Display wired 6139/6164 and
wireless 5839EU/5839H
•
Up to 32 addressable devices, including keypads,
may be used in the system, as long as the auxiliary
current is available (you may need to use an
auxiliary power supply if the 750mA auxiliary
output is exceeded)
To install the keypads, perform the following steps:
1.
Mount the keypads at a height that is convenient
for the user. Refer to the instructions provided with
the keypad for mounting procedure. Refer to the
mounting instructions and template included with
the keypad for specific information.
2.
Determine wire size by referring to the wiring
length/size chart below.
3.
Wire keypads to a single wire run or connect
individual keypads to separate wire runs. The
maximum wire run length from the control to a
single keypad, which is wired back to the control,
must not exceed the lengths listed in the table.
Wire Run Length/Size Table
Wire Size
0.64 mm
0.81 mm
1.0 mm
1.3 mm
The length of all wire runs combined must not
exceed 610 metres when unshielded quad
conductor cable is used (305 metres if
shielded cable used.)
If more than one keypad is wired to a run, then
the above maximum lengths must be divided
by the number of keypads on the run (i.e. the
maximum length would be 69 metres if two
keypads are wired using 0.64mm diametre
wire).
For keypads connected to a single 4-wire run, determine
the current used by all units connected to the single
wire run, then refer to the Wiring Run chart to
determine the maximum wire length that can be safely
used for each wire size. Current drain for each device
can be found in the Installation Instructions
accompanying the device.
4.
Run field wiring from the control to the keypads
(using standard 4-conductor twisted wire cable
using the wire size determined in step 1).
5.
Connect keypads to the Keypad Port terminals 6, 7,
8, and 9 on the control board, as shown below.
3-2
Length
137 m
213 m
335 m
533 m
RED
6
BLACK
7
GREEN
8
YELLOW
9
CONTROL
TERMINALS
Figure 3-3. Keypad Connections to Control Panel
Addressing the Keypads
The keypads will not operate until they are
assigned an address and enabled in the
system's Device Programming Mode.
Set each keypad to an individual address (00-30)
according to the keypad's instructions. Set one alpha
keypad for address "00" and other keypads for higher
addresses (01, 02, and 03 are enabled in the system's
default program). Any keypads set for address 04 and
above will appear blank until they are enabled in the
system's program.
Keypads set to the non-addressable mode
(address 31) may interfere with other keypads
(as well as other devices) connected to the
keypad terminals.
Using a Supplementary Power Supply to Power
Additional Keypads
The control provides 750mA of auxiliary standby power
for powering keypads and other devices from the
auxiliary power output. Aside from this, the control can
support up to 32 peripheral devices (keypads, RF
receivers, relay modules, etc.). The backup battery will
supply power to these devices in the event that AC
power is lost. When the control's auxiliary power load
for all devices exceeds 750mA, you can power additional
keypads from a regulated, 12VDC power supply (e.g.,
AD12612). The AD12612 power supplies have a backup
battery that can power these keypads in the event of
AC mains power loss.
Keypads powered from supplies which do not
have a backup battery will not function when
AC mains is lost. Therefore, be sure to power
at least one keypad from the Control's auxiliary
power output.
Connect additional keypads as shown below using the
keypad wire colours shown. Be sure to observe the
current ratings for the power supply used.
Make connections directly to the screw
terminals as shown. Make no connection to the
keypad blue wire (if present).
Be sure to connect the negative (–) terminal on
the Power Supply unit to terminal 7 (AUX – )
on the control.
KEYPADS
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