®
KEY FOBS RECEIVER EXPANSION MODULE
INT-RX
int-rx_en 05/09
The INT-RX expansion module is designed for operation in the intruder alarm systems. It can
work in conjunction with the SATEL made control panels: INTEGRA (with firmware version
1.05 or newer) and VERSA. The module enables key fobs to be assigned to the security
system users. Using the key fob enables up to 6 functions to be executed. The device
supports up to 248 key fobs manufactured by the SATEL company (the number of supported
key fobs depends on the control panel). Transmission from the key fob is dynamically
encoded using the K
EE
L
OQ
®
technology, which ensures both the operation safety and
immunity to spurious control signals, coming from other devices. The module can support all
key fobs manufactured by SATEL, but only the T-4 and P-4 models enable the module
features to be fully utilized.
1. Description of electronics board
+12V
COM CLK DAT
RS232
(TTL)
1
2
3
4
5
6
7
Fig. 1. View of the INT-RX expansion module electronics board.
Explanations for the figure:
1 –
antenna
.
2 –
superheterodyne receiver
, high sensitivity, immune to spurious signals.
3 –
tamper contact
.
4 –
two-color
LED
indicating as follows:
−
steady green light – normal communication with the control panel;
−
blinking green light – no communication with the control panel;
−
steady red light – the expansion module is receiving transmission from a key fob
with good battery;
−
blinking red light – the expansion module is receiving transmission from a key fob
with low battery.
