Dil Switch & Link Settings; Operation; Pa Limitations; 4K7 Pullcord Resistor - Tynetec Advent xt Installation Manual

12. REMOTE INTERCOM UNIT INSTALLATION
The remote intercom (P/No. ZXT221) can be connected to any standard intercom if a second speech unit is required within
a dwelling. The remote intercom is also available with PA facility (P/No. ZXT226) if all call speech/fire tone is required
through both intercoms. Note; the Extracare reset function is not available on a remote intercom.
INSTALLATION
A 6 pair CW1308 cable is required between the master intercom (connected to the network) and the remote. The cable run
between the master and remote should not exceed 20 metres, only one remote can be connected per master. All auxiliary
input devices such as pullcords, smoke detectors, PIR's, etc. are connected to the master intercom as normal, only the
clean contact relay output is available on the remote. See wiring diagram Drg No. ZXT100 sheet 4 for connection details.
DIL switch and link settings must be made to identify an intercom as a "master" or "remote".
DIL SWITCH & LINK SETTINGS
ADDRESS DIL SWITCH
SET THE SAME 8 BIT ADDRESS ON
BOTH MASTER & REMOTE INTERCOMS

OPERATION

The master or remote intercom can be used to initiate an alarm call and a speech link will be opened to both
simultaneously. The orange cord on the master will report an "intercom alarm" whereas the orange cord (or the alarm
button) on the remote will report a "pullcord alarm". The 4 smaller keypad buttons do not function on the remote unit
therefore the master must be used to select privacy mode or to accept a "message waiting". When privacy mode is
selected the amber LED will illuminate on both the master and remote, any alarm call will override privacy on both
intercoms. When an alarm call is initiated the alarm button will illuminate bright red on both the master and remote. If the
master intercom has Extracare then the alarm button will flash red on both intercoms until cancelled on the master. If
there's a "message waiting" the blue LED will flash on both intercoms until accepted on the master.

PA LIMITATIONS

One PA amplifier & SMPSU (P/No. ZXT155) is capable of driving up to 80 intercoms therefore the total number of master
and remote intercoms on any network leg must not exceed 80. On large installations a second ZXT155 PA amplifier will be
required and separate network leg must be used.

4K7 PULLCORD RESISTOR

A remote intercom does NOT need a 4K7 end of line resistor between terminal 9 & 0V. The 4K7 must be fitted on the
furthest normally open ceiling pullcord connected to the master intercom. NOTE: it is not possible to connect normally
closed pullcords and a remote intercom to a master intercom.
Doc No. FM0410 issue M‐1 Page 19
ON
1 2 3 4 5 6 7 8
ADDRESS
DIL SWITCH
LK3
LK2
ON
1 2 3 4 5 6 7 8
OPTIONS
DIL SWITCH OPTIONS DIL SWITCH 5
OFF = MASTER INTERCOM
ON = REMOTE INTERCOM
JUMPERS LK1/LK2/LK3
LINKS ARE SET DIFFERENTLY
LK1
FOR MASTER/SLAVE INTERCOMS
(SEE TABLE ON PREVIOUS PAGE)