Chapter 1: Overview
ZP3 Fire Alarm Control Panel Installation Manual
15
ZP3AB-NET1 Network Board (Z-Port 2)
The ZP3AB-NET1 Network Board is used to connect a number of control panels
into a peer-to-peer network. The hardware protocol is a multidrop RS-485
screened, two-wire connection. Although the ZP3AB-NET1 board is capable of
dual routing operation, the control panel firmware does not support this feature,
and the board must be used as a single-channel device. In a network of panels,
one of the panels must have the fail-safe links connected by connecting the
jumpers as shown in Figure 14. All other panels must have their jumpers
removed. For long cable runs wiring should be terminated (using LK10) at each
end of the cable run, in addition to the LK8 and LK9 jumpers. In any case no
more than two terminating links (LK10) must be inserted.
Figure 14: ZP3AB-NET1 Network Board (Z-Port 2)
RS-485 operates through up to 2,000 metres of screened, twisted-pair cable.
Wiring can be daisy-chained point-to-point, or can be T-tapped or spurred for
short distances i.e. less than 10 m. The total length of cable in the network
should not exceed 2,000 metres. If the network distances are greater than 2,000
metres, use RS-485 booster units, or fibre-optic cable. For more information refer
to the ZP3AB-NET1 Network Board Installation Sheet.
The cable is specified in detail in Chapter 8 “ZP wiring guide” on page 117.
Z-Port 2
(+)
(+)
(–)
(–)
(Screen)
(Screen)
Connect to terminals of
the ZP3 AB-NET card
in previous ZP3 panels
Connect to terminals of
the ZP3 AB-NET card in
next ZP3 panels
Channel 2 (unused)
Channel 1
Not used
Do not terminate
Single/dual selector
(Always set as dual. Connect
jumper to left pair of pins.)
RS-485 fail-safe jumpers (LK8 and
LK9) (These jumpers must be
installed on
in a
network. All other panels must have
the jumpers removed.)
only one panel
ZP3AB-NET1
Network Interface Board
L
K
8
L
K
1
0
L
K
9
