Carrier 33CNWIRMOD Network Topology, Stand-Alone Transceiver Pin Out, PIN Name Function

Table 2 — Stand-Alone Transceiver Pin Out

PIN	NAME	I/O	FUNCTION
1	DCD — Data Carrier Detect	Output	Session Status (True)
2	TxD — Transmit Data	Output	Data from transceiver to the attached device
3	RxD — Receive Data	Input	Data into transceiver from the attached device
4	DTR — Data Terminal Ready	Input	Data/Command Mode
5	Gnd	—	Signal Ground
6	DSR — Data Set Ready	Output	Always Asserted (High)
7	RTS — Request to Send	Input	HW Flow Control (internally pulled up)
8	CTS — Clear to Send	Output	HW Flow Control (default: asserted/High)
9	RI — Ring Indicate	Output	Status Change (default: de-asserted/Low)

Antenna Installation — Antennas must be connected to each transceiver for proper operation. Without an antenna, two units will not communicate. The higher the gain of the an- tenna, the longer the range of the transceiver signal. All Carrier transceivers ship with a 5 db omni-directional 9-in. antenna. An outdoor antenna is also available from Carrier.

Carrier transceivers are designed to be used only with cer- tain antenna products. Other higher gain directional antennas may be purchased through an approved Carrier supplier. Con- tact Carrier for additional information.

Installation onto a CCN Bus — Use the RS-232 to RS-485 converter to install transceivers directly onto an RS-485 network. An RS-232 to RS-485 converter and power supply is supplied with each transceiver.

1.Separate the RS-485 converter’s housing with a flat blade screw driver.

2.Install jumpers in all 5 terminals.

3.Wire the CCN (+) to screw terminal Pin 1, and CCN (-) to screw terminal Pin 2. See Fig. 2.

4.Cut the power plug off of the power cube 6 in. from the end.

5.Wire the ground wire of the power supply wire to screw terminal Pin 5 and the positive (wire with white line) to screw terminal Pin 6. See Fig 2.

If a transceiver is used to connect directly to a computer, an RS-232 to RS-485 converter is not required. Only the 9-pin cable (supplied) is used.

RED CCN (+) CCN (-) BLACK		V (GND) V (+)
2	x	1
4	x	3
6	x	5
8	x	7
10	x	9

LEGEND

CCN — Carrier Comfort Network

GND — Ground (-)

NOTES:

1.Install end of line termination jumpers between 1 and 2, 3 and 4 if unit is used with the RS-485 network.

2.Install jumpers between 5 and 6, 7 and 8, 9 and 10 to use the converter in a CCN 2 wire set up.

Fig. 2 — Converter Detail

NETWORK TOPOLOGY

The Carrier transceivers support the Broadcast Network topology. Each transceiver can be configured via its Configura- tion Manager to work this topology. The transceiver’s Configu- ration Manager controls how the transceiver transmits and re- ceives data as connected to the device. (See Fig. 3-5.)

Wireless communication signals can be adversely affected by physical and/or electrical interference. Carrier wireless transceivers should NOT be installed in applications where temporary loss of communications cannot be tolerated by the control system. Suitable applications include equipment monitoring, alarm monitoring, control overrides and tem- porary service connections.

Networks — Wireless data connectivity applications require a wide range of networking options. The network topologies consist of more than two transceivers and may have a PC to host a network of devices. The PC or network devices are each physically attached to a transceiver.

WIRELESS SERVICE TOOL — The wireless Service Tool setup allows a CCN service technician to install, commission, and troubleshoot from any location in the building. All CCN elements on the primary bus are accessible. The wireless con- nection allows the technician to utilize a laptop computer to perform all Service Tool functions from anywhere within the range of wireless communication. If the transceiver is located on a rooftop, it is possible to gain wireless access to the build- ing from several miles away.

NOTE: Wireless buss extensions on CCN systems with sec- ondary buses are recommended for temporary use only. Per- manent use is NOT recommended.

WIRELESS BUS EXTENSION — The wireless bus exten- sion setup allows a bus to be extended to a remote location through the use of the wireless transceivers. This set up can be used to connect two portions of a CCN bus when physical wir- ing cannot be used or is not cost effective. This set up may also be used to connect controllers in two different buildings by placing the transceiver on the roofs of the buildings. This set up is not recommended for CCN systems that contain secondary buses.

4