Table of Contents
Advertisement
Wiring and Configuring ECP Communication (ECP Options)
The 7835C supports ECP messaging to communicate directly with the control panel. An unprogrammed
radio can be set to communicate on the ECP bus at device address 3 by pressing the tamper switch during
the initial power up period. See "Programming the 7835C" for details. Only certain panels support ECP
data communication at this time (i.e., ADEMCO's VISTA-10SE, VISTA-20SE, Via-30P and
VISTA-128FB). Select this mode of operation with jumper P3. When P3 is in the ECP position, zone 5 and
zone 6 become ECP IN and ECP OUT, respectively. When using ECP, zones 1 through 3 cannot be used.
Zone 4 becomes the arm/disarm "zone," if this feature is selected.
Connect the 7835C in parallel with keypads and other peripheral devices such as RF receiver, VIP module,
etc., that use ECP. To wire the radio for ECP communication, do the following:
1.
Connect terminal 9 on the 7835C to Data Out terminal of the alarm control panel.
2.
Connect terminal 10 on the 7835C to the Data In terminal of the alarm control panel.
3.
Connect terminal 4 on the 7835C to the Ground terminal of the alarm control panel.
Wire length/gauge limitations are the same for the control panel keypads as they are for the radio. Refer to
the control panel Installation Instructions.
• For UL ECP installations, the 7835C must be connected to a Listed compatible control unit.
U L
Figure 10: Wiring the 7835C for ECP data communication
ECP Status Codes
When the 7835C is configured for ECP mode, it sends status messages to the control for battery, AC
power, tamper and RF failures. The status is displayed on the control's keypad as "Long Rnge Fail"
followed by a 4-digit code when using Ademco's low-end control panels (Vista-10SE, Vista-20SE,
Via-30P). These code are listed below, as well as Contact ID codes sent to the central station.
Table 5. ECP Status Codes Table
Keypad
Status Code Explanation
0000 ...............Control lost communication with 7835C
3000 ...............7835C lost AC power
0880 ...............7835C tamper detected (cover removed)
0060 ...............7835C low battery
0005 ...............7835C has lost contact with AlarmNet
0009 ...............7835C hardware failure; requires factory service
000D...............7835C radio account is no longer active
............
000F
* as displayed on 685 Digital Receiver
** xx = 7835C device address
DATA
IN
CONTROL
PANEL
7835C is not registered; radio account not activated
DATA
GND
7835C
OUT
TERMINAL BLOCK
TRIG (-) TERM. 4
ECP IN TERM. 9
ECP OUT TERM. 10
– 26 –
Contact ID
Code*
Meaning
R330 C8xx** ..... Restore of RF faults
........................... (restore of peripheral trouble)
E342 C8xx**...... ECP AC loss
R342 C8xx** ..... ECP AC restore
E338 C8xx**...... ECP low battery
R338 C8xx** ..... ECP low battery restore
E339 C8xx**...... ECP power-on reset
E341 C8xx**...... ECP tamper
R341 C8xx** ..... ECP tamper restore
E355 C000 ........ radio lost comm. with control
R355 C000........ radio restore comm. w/control
Advertisement
Table of Contents
