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Sentinel CX

Sentinel CX Sensor Station IM Rev. 1.2 Page 4 of 4

routes around congestion and line-of-sight obstacles while improving throughput as subscriber device

density increases.

The radio module is housed in a black ABS box mounted inside of the CX stainless steel enclosure. The

standard package includes two PCAs mounted inside the black ABS box (radio PCA and Smart battery

charging PCA), 5 dB antenna, and a protective antenna cover. The battery PCA includes circuitry to safely

recharge the battery from a 24VDC input and a fuel gauge circuit to monitor the charge remaining in the

battery.

The radio PCA includes a 2.4Ghz radio and a rotary switch for setting the RF channel of the system (Figure

2). Use a small screwdriver to rotate the switch until the arrow points to the desired RF channel number (16

channels available, 0h-Fh).

NOTE

All devices within the network must be on the same RF channel to operate correctly.

Each radio module is required to have a unique address. These addresses typically start at 01h and continue

sequentially for each SmartWireless CX in the gas detection system. The radio PCA includes a pair of

rotary switches to set this address (Figure 2).

NOTE

The switch for the most significant digit (MSD) is on the right and the least significant digit

(LSD) is on the left.

Figure 2 SmartWireless® CXT Radio Module

1.6 Sensor Inputs

The SmartWireless® CXT includes a Sensor Input PCA that accepts 4-20mA inputs from up to 4 attached

sensors. The PCA includes two rotary switches to set its Modbus address (Figure 3). This address is set to

01 for SmartWireless® systems using a CXT or Model X40 controller. If an MCX-32 controller is being

used, this address needs to be unique for each CXT in the system. For an MCX-32 system, the addresses

should start at 40h and continue sequentially for each CXT in the system.

Sensor Connector Ratings

Voltage: 9-11.2 VDC

Current: 100 mA max through any single sensor connector

RF Channel

Selector Switch

Modbus

Address LSD

Switch

Modbus

Address MSD

Switch

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Detcon 240 Bedienerhandbuch Seite 8