Installing The Keypads; Keypads That May Be Used; Wiring To The Keypads - ADEMCO VISTA-120 Installation And Setup Manual

This section provides the following information:
• A list of keypads that may be used
• Instructions for wiring and mounting the wired keypads
• Instructions for addressing the keypads
• A preliminary check-out procedure to ensure that the keypads are functioning properly in
the system

Keypads That May Be Used

• Two Line Alpha Display wired 6139, 6139AV and wireless 5839EU
• 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)

Wiring To The Keypads

1. Determine wire size by referring to the wiring length/size chart below.
2. 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.
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 all devices
can be found in the SPECIFICATIONS AND ACCESSORIES section.
3. Run field wiring from the control to the keypads (using standard 4-conductor twisted wire
cable using the wire size determined in step 1).
4. Connect keypads to the Keypad Port terminals 6, 7, 8, and 9 on the control board, as
shown below.
–16–
SECTION 5

Installing the Keypads

Wire Size
0.64 mm
0.81 mm
1.0 mm
1.3 mm
A. 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.)
B. 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 0.64 mm diameter wire).
Figure 6. Keypad Connections To the Keypad Port terminals.
Length
137 m
213 m
335 m
533 m
RED
R
6
BLACK
B
7
KEYPADS
GREEN
G
8
YELLOW
Y
9
CONTROL
TERMINALS
Wire Run Length Table