Wiring The 7845I-Gsm; Wiring For Ecp, 4204 And Two-4204 Modes - Honeywell AlarmNet 7845i-GSM Installation And Setup Manual
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Internet Communication Module 7845i-GSM Installation and Setup Guide
Unshielded, 22 AWG cable is recommended for 7845i-GSM power/data wires
Wiring the 7845i-GSM
Wiring for ECP, 4204 and Two-4204 Modes
Most Honeywell ADEMCO control panels support LRR-ECP data communication, (e.g.,
VISTA-10P, VISTA-15P, VISTA-20P, LynxR-I, VISTA-128BP and VISTA-128FBP). 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 7845i-GSM to a compatible Honeywell VISTA control panel's ECP terminals, in
parallel with keypads and other peripheral devices such as RF receiver, 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 or 4204 modes, see Figure 2 and make the
following connections:
2-2
Table 1. Wiring connections for ECP or 4204 modes
7845i-GSM
Terminal 3 V+
Terminal 4 GND
Terminal 5 Data In
Terminal 6 Data Out
+12 V AUX
GND
DATA OUT
DATA IN
VISTA CONTROL PANEL
Figure 2. Wiring a VISTA for ECP Mode or 4204 Modes
Control
+12 V Aux
Ground
Data Out
Data In
TRANSFORMER
MODEL No. 1332
TB1
AC INPUT 1
1
AC INPUT 2
2
RED
ECP (+) VOLTAGE INPUT
3
BLK
GND
4
YEL
5
ECP DATA IN
GRN
6
ECP DATA OUT
7845i-GSM
J1
BATTERY
ADEMCO
K14139
7845i-GSM-005-V0
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