ADEMCO Security System VISTA-15CN Guia de preparacion Pagina 20

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VISTA-15/VISTA-15CN Installation and Setup Guide
3–2
The length of all wire runs must not exceed 1500 feet (457m) when unshielded quad conductor
cable is used (750 feet if shielded cable is used). This restriction is due to the capacitive effect on
the data lines when quad cable is used.
2. Run field wiring from the control to the keypads (using standard 4-conductor twisted wire
cable of the wire gauge determined in step 1).
3.
Connect
remote
keypads
to terminals 4, 5, 6, and 7 on the control board, as shown in
Figure 6.
5
6
7
4
TERMINALS ON
CONTROL PANEL
BLACK
RED
GREEN
YELLOW
KEYPAD
Figure 6. Keypad Connections to the Control Board
Mounting the Keypads
To mount the keypads, perform the following steps:
1. Make sure the
addressable keypad(s)
are set to non-addressable mode (address 31), which
is the factory default setting. Refer to the instructions provided with the keypad for
address setting procedure.
2. Mount the keypads at a height that is convenient for the user. Refer to the instructions
provided with the keypad for mounting procedure.
You can either surface mount or flush mount keypads (using an appropriate Trim Ring
Kit:
6139TRK
). Refer to the mounting instructions and template included with the keypad
and/or trim ring kit for specific information.
Supplementary Power for Additional Keypads
The VISTA-15/VISTA-15CN control provides 600mA for powering keypads (up to 4) and
other devices from the auxiliary power output. The backup battery supplies power to these
keypads in the event that AC power is lost.
When the
control’s
auxiliary power load for all devices exceeds 600mA, you can power
additional keypads from a regulated 12VDC power supply (e.g.,
487-12
supplies 12V, 250mA;
488-12
supplies 12V, 500mA). Use a
UL
Listed, battery-backed supply for UL installations.
The 487-12/488-12
power
supplies have a backup battery that can power these keypads in the
event of AC power loss to the main supply.
Keypads powered from supplies that do not have a backup battery
will not function
when AC
power is lost. Therefore, be sure to power at least one keypad from the control's auxiliary power
output.
Connect the additional keypads as shown in
Figure 7
, using the keypad wire colors shown. Be
sure to observe the current ratings for the power supply used.
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