30
85
86
87a
87
Fuse
(1A)
«GND»
«+»
«-»
Car battery
Diode 1N4007
Fuse
External
device
+
-
«GND»
4
2
3
1
14
7
13
6
12
5
11
4
10
3
9
8
2
1
6
5
4
3
2
1
Figure 40. Connection diagram of the relay to the outputs of the device OUT1-OUT4
2.8 1-Wire informational interface (IButton) connection
1-Wire controller interface (IButton) allows to connect up to four digital sensors like DS18S20 (DS18B20) to
the device, and it can also operate with DS1990 keys or key / card readers that emulate DS1990 keys via interface
1- Wire.
Each DS1990 key is a chip with a unique identification number stitched into it at the manufacturing plant by
which the device identifies this sensor.
Saving the key codes in the device’s memory allows to use identification when changing the security mode,
activating the output with the profile set: “TM registered key indicator” and “TM key indicator”, and also necessary
for operation of the “Immobilizer” function.
The maximum number of stored keys - 510.
It is also allowed to connect external readers of contactless Proximity-cards and keyfobs that have
TouchMemory DS1990A key emulation interface. However, such readers, as a rule, do not operate together with
thermal sensors connected to the same physical interface.
Figure 41. TouchMemory System Key
Figure 42. TouchMemory key contact reader
Figure 43. Temperature sensor based on DS18S20 chip
