Doc No. FM0804 issue 4 Page 30
19. MANAGER CALLPOINT INSTALLATION
The XT2 Manager Callpoint (P/No. ZXT940) is an external
speech unit used to initiate a call from outside the building.
Note: the ZXT941 model is the same but with custom engraving.
It is connected to the system network like a standard intercom.
INSTALLATION
The standard backbox is designed for flush mounting - a stainless surface cowling (P/No. HM1125) is available
separately. Do not cut a hole in the top face of the backbox for cable entry as this may allow water to enter and
damage the electronic components. The cut-out dimensions given below will allow the standard backbox to fit flush
into the wall with the bezel overlapping by approx. 14mm on all sides.
Part No.
Height
Width
Depth
ZXT940/941
210mm
170mm
60mm
The backbox should be sealed with a suitable mastic to prevent water ingress. The backbox and fascia must be bonded
to the Mains Earth terminal with a minimum of 2.5 mm
2
cable in line with current IEE regulations. The fascia is fixed by
4 off M5x12mm Allen key screws which require a 3mm Allen key tool.
TERMINATION
Carefully unplug the termination board off the back of the Manager Callpoint to gain access to the screw terminals.
Connect to the system network wiring as shown above, fit a 4K7 resistor acros
s terminals 2 & 9 to prevent an “open
circuit fault” being reported, and then refit the termination board ensuring correct orientation.
DIL SWITCHES & LINKS
T
he “ADDRESS” DIL switch should be set with the next available unique 8
-bit binary address and th
e “OPTION SELECT”
DIL switches 1 to should be all OFF, switch 8 on to disable PA. Fit Links LK1 & LK2 both
in position “
A
”.
PROGRAMMING
The
Manager’s Callpoint must be included in
total number of intercom units set in the
RS485 Network Setup
programming and its ID must be set in the
Tenants Units Create/Edit
programming
–
see the Advent XT2
Programming Manual (Doc No FM0815).
DOOR LOCK CONNECTION
The normally open clean contact relay output on terminals 16&17 can be used to release an electric lock when a
speech channel is open to the Manager/ARC. Power for the lock release must be taken from an additional PSU - not
the Advent XT2 network. Alternatively, an auxiliary relay output on the Advent XT2 controller can be set to activate
with a DTMF character - see the
Inputs & Outputs
section of the Advent XT2 Programming Manual (Doc No FM0815).
Terminal
Network
Signal
1
24V DC
Power
2
0V
3
TX+
Data
4
TX-
5
SP1
Audio 1
6
SP2
7
MIC1
11
SP1
Audio 2
12
SP2
13
MIC2
