Product Codes 
| FCS-M | 
Modbus® RTU RS-485 WAN Output FCS Controller | 
 
| FCS-B | 
BACnet® MS/TP RS-485 WAN Output FCS Controller | 
 
 
Factory Options
  
| -AI | 
 Four internal Analog Inputs 4-20 mA | 
 
| 
 -2AI 
 | 
 Eight internal Analog Inputs 4-20 mA | 
 
| -AO | 
 Four internal Analog Outputs 4-20 mA | 
 
| -2AO | 
 Eight internal Analog Outputs 4-20 mA | 
 
| -AIAO | 
 Four internal Analog Inputs 4-20 mA and four internal Analog Outputs 4-20 mA | 
 
| -DL | 
 Enclosure door lock and keys to prevent unauthorized access to inside the enclosure | 
 
| -IH | 
 Internal heater for cold environment applications down to -40°C / 40°F | 
 
| -L | 
 Top mounted strobe, red lens, IP65 rated, 6.1 cm dia x 13 cm H / 2.4 in dia x 5.2 in H) | 
 
| -SW | 
 Manual shutoff switch (for emergency electrical shutdown, ventilation purge and to meet B52 code requirements) | 
 
| -WA | 
 Door mounted, water tight audible alarm, rated 85 dB @ 60.96 cm / 2 ft | 
 
 
Field Options
  
| FCS-OPTION AO | 
Analog Output board for adding four internal 4-20 mA analog outputs to the FCS-8, install in the field by qualified technician only or send back to factory for installation | 
 
| FCS-OPTION AI | 
Analog Input board for adding four internal 4-20 mA analog inputs to the FCS-8, install in the field by qualified technician only or send back to factory for installation | 
 
| CET-BAC-MOD | 
CETCI BACnet Module for converting FCS-8-M WAN communication from Modbus® to BACnet®, installed in the field by qualified technician only | 
 
 
Compatible Analog (4-20 mA) Transmitters (requires factory installed -AI or -2AI Option)
  
| LPT Series | 
Single channel analog gas detector for monitoring carbon monoxide, nitrogen dioxide, ammonia, chlorine, ozone or oxygen | 
 
| LPT-A series | 
Single channel analog gas detectors for monitoring many different toxic, combustible or refrigerant gases | 
 
| ART series | 
Single channel analog infrared refrigerant gas detectors with 0 - 3,500 ppm range | 
 
| CGAS Detectors series | 
Single channel analog infrared CO2 gas detectors with 0 - 5000 ppm or 0 - 5% vol measurement range | 
 
| CXT-A series | 
Single channel, analog explosion proof gas detectors for monitoring toxic or combustible gases in hazardous-rated areas | 
 
 
Compatible Digital (Modbus® RS-485) Transmitters
  
| ART series | 
Single channel Modbus® infrared refrigerant gas detectors with 0 - 3,500 ppm range | 
 
| CGAS Detector series | 
Dual channel digital gas detectors for monitoring many different toxic, combustible or refrigerant gases | 
 
| LPT-P series | 
3 channel, digital gas detectors for monitoring CO, NO2 and combustible gases | 
 
| LPT-M series | 
3 channel, digital gas detectors for monitoring many different toxic, combustible or refrigerant gases | 
 
| CXT-D series | 
Single channel, digital explosion proof gas detectors for monitoring toxic or combustible gases in hazardous-rated areas | 
 
 
Peripheral Devices
  
| LNK-AI (max 15, no internal AI) | 
Analog Input Peripheral Device that adds four 4-20 mA inputs, Modbus® RS-485 communication | 
 
| LNK-AO (max 15, no internal AO) | 
Analog Output Peripheral Device that adds four 4-20 mA outputs, Modbus® RS-485 communication | 
 
| LNK-XT | 
Network Extender Peripheral Device to extend the Modbus® RS-485 BUS wire length | 
 
| QCC-RDM (max 20) | 
Remote Display for alternate location viewing of gas level readings | 
 
| RLY-4 (max 14, no RLY-8) | 
Remote Relay that adds four relay outputs, rated 5A @ 240 volts each, Modbus® RS-485 communication | 
 
| RLY-8 (max 7, no RLY-4) | 
Remote Relay that adds eight relay outputs, rated 5A @ 240 volts each, Modbus® RS-485 communication | 
 
| RPS-24VDC | 
Remote Power Supply to provide power to extend the network of remote and peripheral devices | 
 
| RSA-24V | 
Remote LED strobe light with audible, red lens, 8.9 cm / 3.5”, comes with mounting bracket | 
 
| RSH-24V-A | 
Remote Horn/Strobe Combo, unmounted, 24 VAC/VDC, rated 99 dB @ 3 m (10 ft) (VAC), 97 dB @ 3 m (10 ft) (VDC), amber lens | 
 
| RSH-24V-B | 
Remote Horn/Strobe Combo, unmounted, 24 VAC/VDC, rated 99 dB @ 3 m (10 ft) (VAC), 97 dB @ 3 m (10 ft) (VDC), blue lens | 
 
| 
 RSH-24V-R 
 | 
Remote Horn/Strobe Combo, unmounted, 24 VAC/VDC, rated 99 dB @ 3 m (10 ft) (VAC), 97 dB @ 3 m (10 ft) (VDC), red lens | 
 
 
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