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7847i-E Installation and Setup Guide
Wiring the 7847i-E
ULC
NOTE: The unit is to be mounted with all interconnecting wires between the Listed Control panel
and communicator less than 3 feet in length and contained within the same room. All
interconnecting wiring must be installed in rigid or in flexible metal conduit if run in the walls or
ceiling. A UL/ULC Listed router must also be used.
Wiring for ECP Mode
Most Honeywell ADEMCO control panels support ECP data communication, (e.g., VISTA-
10P, VISTA-15P, VISTA-20P, LynxR-I, VISTA-128BP/BPT and VISTA-250BP/BPT and the
VISTA-128FBP/FBPT and VISTA-250FP/FBPT). However, there are some panels that do
not. Check the Installation and Setup Guide for the control panel you are using to see if it
supports ECP communication.
Connect the 7847i-E to a compatible Honeywell VISTA control panel's ECP terminals, in
parallel with keypads and other peripheral devices, VIP module, etc. Wire length/gauge
limitations are the same for the module as they are for keypads and other peripheral devices.
To wire the module for ECP communication, see Figure 3 and do the following:
Wiring for Zone Trigger Mode
To trip the zone on the 7847i-E in V+ trigger mode, the positive triggering voltage from the
control panel must be within 2.0V-14V.
Trigger levels above this range may cause permanent damage to the unit.
Trigger levels below this range result in unreliable operation.
To trip the zone on the 7847i-E in V- trigger mode, the negative triggering voltage must be
less than 1.0V.
Connect a wire from the triggering source (bell output, voltage trigger, etc.) of the control
panel to the zone input of the module, and connect a common ground between the module
and control panel.
2-2
Unshielded, 22 AWG cable is recommended for 7847i-E power/data wires.
For ULC Household Fire and Burglary installations, use ECP wiring only.
Table 1. Wiring connections for ECP mode
7847i-E
Terminal 3 V+
Terminal 4 GND
Terminal 5 Data In
Terminal 6 Data Out
Figure 3. Wiring a Vista for ECP Mode
Control
+12 V Aux
Ground
Data Out
Data In
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