GSI Electronics LCRS485 Quick Start Manual Download Page 2

   9 - LCRS485 WIRING DIAGRAM

   10 - RATING

PUSH-BUTTON

This button allows us to interact with the Legacy 

Connect card as follows:

NOTE: Caution must be taken when manipulating 

the electronics while power is on. 
NOTE: The push-button is operational only when 

the Legacy Connect software is running normally. 

For example, if the heartbeat LED isn’t blinking, 

you won’t be able to reset the card. In that case, you 

may need to power-cycle the host controller.

Press Duration

Action

Less than 1 second

Nothing

Between 1 and 4 

seconds

Resets the card

More than 5 

seconds

Resets to factory settings. 

ALL data on the card is lost.

DIP Switches

The array of DIP switches is not used.

EOL Switch

This switch must always be in EOL position.

RS-485 Connector

This connector can be used to connect additional 

RS485 modules when using a controller of the TC5 

family.

RS-485 LEDs (LCRS485 model only)

Two LED indicators at the bottom-right of the card 

monitor the communication between the controller 

(TC5 family) and its auxiliary modules.

 LCRXTX Safety Ratings 

INPUTS:

Supply Input:

 14Vdc +/- 3V, 111mA max

Operating Temperature  0 to 40°C (32 to 104°F)

Storage Temperature in 

the cardboard 

 -20 to 50°C (-4 to 122°F)

Environment Type

 Indoor use only

Pollution Degree

 2

Installation Category

 2

Altitude

 2000 Meters Max.  

(6561 Ft. Max)

Operating Relative  

Humidity (maximum)

 0 to 10°C (32 to 50°F)  

Non-condensing
10 to 30°C (50 to 86°F) 95% 

(± 3 %) Non-condensing
30 to 40°C (86 to 104°F) 95% 

(± 3 %) Non-condensing

IP rating (IEC 60529) 

 0

Nema Rating (Nema 250)  1

Flame Rating (UL94)

 5VA V-0

Flame Rating (IEC 60695 

or IEC 60707)

 FV-0

 LCRS485 Safety Ratings

INPUTS:

Supply Input:

 14Vdc +/- 3V, 122mA max

Operating Temperature  0 to 40°C (32 to 104°F)

Storage Temperature in 

cardboard box 

 -20 to 50°C (-4 to 122°F)

Environment Type

 Indoor use only

Pollution Degree

 2

Installation Category

 2

Altitude

 2000 Meters Max.  

 (6561 Ft. Max)

Operating Relative  

Humidity (maximum)

 0 to 10°C (32 to 50°F)   

 Non-condensing
10 to 30°C (50 to 86°F) 95% 

(± 3 %) Non-condensing
30 to 40°C (86 to 104°F) 95% 

(± 3 %) Non-condensing

IP rating (IEC 60529) 

 0

Nema Rating (Nema 250)  1

Flame Rating (UL94)

 5VA V-0

Flame Rating (IEC 60695 

or IEC 60707)

 FV-0

Telecommunication Information

The FCC ID of Espressif Systems Wireless 2.4GHz radio module (ESP32-WROVER-E) is 2AC7Z-ESP32WROVERE.

 

The IC ID of Espressif Systems Wireless 2.4GHz radio module (ESP32-WROVER-E) is 21098-ESP32WROVERE.

GND   B   A

GND   B   A

2    1    2    1

SLAVE    PC

2    1    2    1

SLAVE    PC

See NOTE 3

See NOTE 3

Ventilation Controller 1

Air Inlet Module 1

Air Inlet Module X (last one)

GND   B   A

NOTE 3: 

•  Use a twisted pair shielded cable at 600V and with a temperature insulation of 90C (min). The maximum 

length of the cable is 3000m (10,000 ft) and the recommended wire diameter is 1.0mm (18 AWG).

•  Use a lightning protection module when running the cable between buildings. 
•  Interconnect shield wires together.
•  Do not ground the shield wire.

NOTE 2: 

Consult the Comlink-2 

manual (890-00063) about more 

air inlet module configurations.

NOTE 1:

 No additional wiring.

  LCRS485 - No Air Inlet Modules

   LCRS485 - With Air Inlet Modules

   8 - LCRS485 MODEL

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