Stulz Tel-Air-2 Series, Operating Instructions Manual

Page: 51 / 72

E/0618/35A/51
Configuration of plate connecting the cables to the unit with electronic control
(1) All digital output signals are voltage-free type, with the following rating for
contacts: maximum allowed voltage = 24V AC / 48V DC, maximum allowed current
= 1A. All digital inputs require a voltage-free signal from external devices
eventually connected to them. Analogue inputs for humidity probes accept a
4÷20mA signal / 27V DC.
(2) I/O signal connectors C1 and C2 are SUB-D type. ACTADAPT accessory is
available as interface from SUB-D to screw terminals.
(3) ACTRAS accessory needs pins 2/10/12 of C2 to be connected to C2020.
Therefore with this accessory, two inputs for external humidity probe and door
open / intrusion signals are not available.
Keypad
connector
SUB-D CONNECTOR C2
1/9 Internal relative humidity probe
2/10 External relative humidity probe (3)
3/11 Smoke / fire sensor
4/12 Door open / intrusion (3)
5/13 External on-off
Other pins not used
SUB-D CONNECTOR C1
1/14 Common warning
2/15 Low pressure
3/16 High pressure
4/17 Air flow
5/18 Dirty filter
6/19 High temperature
7/20 Low temperature
8/21 High humidity
9/22 Common alarm
Other pins not used
16... 25
1... 15
9... 15
1... 8
MAIN POWER SUPPLY
EMERGENCY
POWER SUPPLY
SEQUENCING
LAN
USER
INTERFACE
Sequencing
cable
connector
Cable entry