Using A Supplementary Power Supply To Power Additional Keypads; Mounting The Keypads; Figure 5-1: Keypad Connections To Control Panel; Figure 5-2: Using A Supplementary Power Supply For Keypads - ADEMCO VISTA-128B Installation And Setup Gude

VISTA-128B Installation and Setup Guide

Using a Supplementary Power Supply to Power Additional Keypads

The control provides 750mA auxiliary standby power for powering keypads and other devices
from the auxiliary power output. 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., Alarm-Saf Model AS/PS5-BFS-12-UL). Use a UL Listed, battery-backed supply for UL
installations.
Connect the additional keypads as shown in Figure 5-2, using the keypad wire colors shown.
Be sure to observe the current ratings for the power supply used.
1. Make connections directly to the screw terminals as shown in Figure 5-2 . Make no connection
to the keypad blue wire (if present).
2. Be sure to connect the negative (–) terminal on the power supply unit to terminal 7 (AUX –) on
the control.
SUPPLEMENTARY
POWER SUPPLY
+

Figure 5-2: Using A Supplementary Power Supply For Keypads

Mounting the Keypads

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 the 6139TRK Trim Ring Kit).
Refer to the mounting instructions and template included with the keypad and/or trim ring
kit for specific information.
5-2
RED
6
BLACK
7
GREEN
8
YELLOW
9
CONTROL
TERMINALS

Figure 5-1: Keypad Connections to Control Panel.

CONTROL
TERMINAL STRIP
–
AUX AUX.DATA DATA
+ –
6 7
IMPORTANT:
MAKE THESE
CONNECTIONS
DIRECTLY TO
SCREW
TERMINALS AS
SHOWN.
KEYPADS
IN OUT
8 9
IMPORTANT:
Make connections directly to screw
terminals. Make no connection to the
keypad blue wire (if present).