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ISH1 Hub
As the central controller for the ComPoint sys-
tem, the ISH1 hub performs all communications
routing. It addresses each keypad by sending a
message on the status wire in the CAT-5 cable
to give the keypad its own ID number according
to the port it's connected to.
The hub has 6 zone keypad ports. Up to 6 ISH1
hubs can be linked together for a maximum of
36 zones. With multiple hubs, each hub must be
assigned a unique ID number during installation.
The hub also has ports for 2 door stations. In a
system with multiple linked hubs, only the hub
with ID number 1 supports the door stations.
A separate doorbell chime tone can be selected
on hub 1 for each door. These chime selections
take effect for the entire system and play
through all the zone keypads.
The hub's firmware contains a list of zone labels
for display on the ISK2 Advanced Keypads. The
labels are assigned to zones by the installer and
stored in nonvolatile memory within the hub.
The ISH1 hub uses an external power supply to
conserve chassis space. It also has a port for
updating the system firmware from a computer.
System keypads
ComPoint keypads are designed to be simple,
intuitive interfaces for the user. Each model has
a Talk key, volume keys, and a DND key for set-
ting the zone in Do Not Disturb mode. Both
models have installer-selectable amber or green
backlighting that turns on when the system is
used and turns off after the system is inactive
for 60 seconds. A built-in microphone with auto-
matic gain control picks up the user's voice.
The keypads require external speakers, which
are driven by the keypad amplifiers for commu-
nications. By using built-in speaker relays, the
keypads can share the speakers used in a multi-
room audio system. When ComPoint activates,
INSTALLER SECTION
the relays switch the speakers from the audio
system to the keypad amplifiers in the affected
zones, momentarily interrupting the audio pro-
gram. When the activity ceases, the speakers
are switched back to the audio system.
In the absence of a multiroom audio system, or
in zones that are not shared with an audio sys-
tem, the ISSP ComPoint speaker can be used
or the keypads can be wired directly to in-wall,
in-ceiling, or surface-mounted speakers.
The keypad amplifier is monaural, but the relay
passes stereo signals from the audio system to
the speakers.
The keypad volume keys adjust the listening
level for communications by controlling the key-
pad's amplifier output. They have no effect on
the room volume for a connected audio system.
The volume keys signal the hub to send a ping
tone as an audible cue for the volume level
when there is no communication taking place.
Once the volume adjustment reaches either end
of the range, the ping tone no longer sounds.
ISK1 Basic Keypad
The ISK1 Basic Keypad is designed for use in a
system with no more than six zones. Pressing a
zone key selects a target zone for an intercom
session.
Certain keys change to red to indicate zone or
door station selection, incoming page or inter-
com, door station call, or system busy. When
another zone originates a page or intercom ses-
sion, that zone is indicated by a red-backlit zone
key on the ISK1.
ISK2 Advanced Keypad
The ISK2 Advanced Keypad has enhanced fea-
tures to provide more user feedback and sup-
port a larger system than the ISK1. It uses a 5-
character LCD panel to show zone and door
station labels and other information.
Product Summary
17
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