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ISK1 Basic Keypad

Instruction Manual

Product Overview

The ISK1 Basic Keypad is a single-gang Decora

®

-style 

in-wall keypad for use in a ComPoint

intercom system

with up to six zones. Besides a Talk key, it has keys for
selecting target zones and door stations, adjusting vol-
ume, and enabling Do Not Disturb mode. The keypad
has installer-selectable amber or green key backlighting.

The keypad uses one or two external speakers. A built-in
speaker relay allows it to share speakers with an audio
system for high-fidelity communications.

1

2

3

4

5

6

1

2

3

4

5

6

ZONE KEYS – Select zones for intercom sessions
and indicate zones originating communications

TALK KEY – Activates microphone for outgoing
communications

DOOR KEYS – Select and indicate door stations;
also activate door strike release module

MICROPHONE – Picks up user’s voice for communi-
cations and ambient sounds for Listen mode

VOLUME KEYS – Control keypad output volume

DND KEY – Enables and disables Do Not Disturb
mode for the zone

5 Forbes Road, Newmarket NH 03857 USA

Tel 603.659.5170 • Fax 603.659.5388

www.russound.com

Warranty

The Russound ISK1 Keypad is fully guaranteed for two (2) years from the
date of purchase against all defects in materials and workmanship. For
this warranty to apply, the unit must be installed and used according to its
written instructions. During this period, Russound will replace any defec-
tive parts and correct any defect in workmanship without charge for either
parts or labor. Accidental damage and shipping damage are not consid-
ered defects under the terms of this warranty. Russound assumes no
responsibility for defects resulting from abuse or servicing performed by
an agency or person not specifically authorized in writing by Russound. If
service is necessary, it must be performed by Russound. Damage to or
destruction of components due to excessive power voids the warranty. In
these cases, the repair will be made at the owner’s expense. To return for
repairs, the unit must be shipped to Russound at the owner’s expense,
along with a note explaining the nature of the service required. Be sure to
pack in a corrugated container with at least 3 inches of resilient material
to protect the unit from damage in transit.

Before returning a unit for repair, call Russound at 603.659.5170 for a
Return Authorization number. Write the RA number on the shipping label
and ship to: Russound, 5 Forbes Road, Newmarket NH 03857.

Russound sells product only through authorized dealers and distributors to
ensure that customers obtain proper support and service. Any Russound
product purchased from an unauthorized dealer or other source, including
retailers, mail order sellers and online sellers will not be honored or serv-
iced under existing Russound warranty policy. Any sale of products by an
unauthorized source or other manner not authorized by Russound shall
void the warranty on the applicable product.

Technical Specifications

User controls: 6 zone selection/indication keys

Talk key
2 door selection/indication keys
DND selection/indication key
Volume Up and Volume Down keys

Backlighting: Installer-selectable amber or green

Audio input: Built-in microphone with automatic gain control

Amplifier: Monaural (for system functions only)

Amplifier power: 2 watts

Min. load impedance: 6 ohms per channel

Speaker relay: 4-pole double-throw

Speaker relay rating: 50 watts RMS continuous

Speaker connector: 8-pole screw terminal

Speaker wire size: Up to 14 AWG (1.63 mm)

CAT-5 connector: 110 punch-down block

Power consumption: 15 VDC 800 mA maximum, 200 mA typical

Keypad style: Single-gang Decora

®

Dimensions: 1.875” W x 4.188” H x 2.5” D

(4.8 x 10.6 x 6.4 cm)

Weight: 4.8 oz (136 g)

Installation and Trim

The ISK1 Keypad is designed to install in a standard US
electrical plastic wall box with an internal volume of at
least 18 cubic inches (295 cm

3

). The keypad occupies a

single gang and accepts a Decora

®

wall plate. For the

best accessibility, viewability, and microphone reception,
we recommend installing the keypads at a standard ther-
mostat height of 58 to 60 inches (1.5 m). This may vary
according to personal preferences or requirements.

Wiring

ComPoint system components interconnect with CAT-5
cable. Run CAT-5 from the hub location to every keypad
location. If the ComPoint system is sharing speakers
with an audio system, loop the speaker cables through
the keypad locations. If dedicated speakers are being
used, run the speaker cables to the keypads.

When running CAT-5 and speaker cables, avoid running
them near AC power wiring. If you have to run the
cables parallel to electrical wiring, space the cables at
least two feet (0.6 m) from the AC power lines.

Connections

The keypad provides a 110 punch-down connector for
the CAT-5 cable. Use a punch-down tool to connect the
wires according to the connector color code as shown:

The keypad also has an 8-pole screw-terminal connector
for accessing the internal speaker relay. The speakers
connect to the output terminals. The input connectors
are used for connecting an audio system amplifier when
it shares the speakers with the keypad.

Note: Both speaker output channels must be connected,
since they are wired in series. If you are using only one
dedicated speaker, connect the speaker to one channel

and connect a shorting jumper or a 2-watt power resis-
tor of up to 8 ohms to the other channel. If the CAT-5
cable to the keypad is short, a jumper will suffice. If the
CAT-5 is long, use a resistor instead to reduce the load
on the keypad amplifier.

Be sure to observe correct polarity when connecting the
speaker wires. The standard color code for 4-conductor
speaker cable is as follows:

Wire Color

Polarity

White

Left +

Green

Left –

Black

Right –

Red

Right +

Backlight Color Selection

To select the keypad backlight color, use the miniature
slide switch located on the bottom edge of the first cir-
cuit board behind the keypad yoke.

For more information, see the ComPoint system manual.

    BR  BR/W  G  G/W  O   O/W   BL   BL/W

    BR  BR/W    G   G/W    O   O/W   BL   BL/W

OUT TO SPEAKERS

IN FROM AMPLIFIER

L+        L-         R-         R+

L+        L-         R-         R+

To amplifier

To speakers

    BR  BR/W  G  G/W  O   O/W   BL   BL/W

Amber

Green

Back view

Bottom view

110 punch-down connection

Backlight color selection switch

Speaker connections

Copyright © 2006 Russound. All rights reserved. All trademarks are the
property of their respective owners. Specifications are subject to change
without notice. Russound is not responsible for typographical errors or
omissions.

28-1212  03/31/06

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