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PAGE 8
CHAPTER 2: INTRODUCTION
2.1
Overview
To Manual the built-in MJ1 and MJ2 serial ports on the XLe, the 2.4GHz modem optional COM
module (HE-XRZ2) can be installed internal to the XLe to provide 2.4GHz spread spectrum
communications. This optional COM module provides a cost savings over an external modem
and reduces the amount of consumed space.
The HE-XRZ2 has the following features:
Topology
Frequency
Sensitivity
Power
Indoor range
Outdoor range - up to 300 feet (line-of-sight)
Transfer rate
The HE-XRZ2 allows spread spectrum communications through ladder communication function
blocks when the MJ1/Com Option port is opened in Radio mode via the OPEN function block.
The SEND function block may then be used to initialize the operating parameters utilizing Hayes
AT style commands (such as source and destination IDs). Once the HE-XRZ2 is initialized and
an AT style command to exit command mode is issued; thereafter, either the SEND/RECV or
MODBUS function blocks may be then used to transfer data.
The HE-XRZ2 utilizes the same internal communications channel (UART) as the MJ1 serial port;
thus, enabling the HE-XRZ2 deactivates the MJ1 serial port. However, support is provided to
select which device is currently active through ladder control.
The HE-XRZ2 is provided connection to the internal handshake lines of RTS and CTS. As such,
the OPEN function block handshake parameter of hardware is functional if the HE-XRZ2 is
programmed appropriately. Additionally, software handshaking (XON/XOFF) is also available if
both the OPEN function block and the HE-XRZ2 is programmed appropriately.
Included with the HE-XRZ2 is an articulated 1/2-wave dipole RPSMA antenna (2.1 db gain).
The HE-XRZ2 internally uses the MaxStream Xbee Pro 2.4GHz OEM core. For additional
technical information, certifications or extended AT command set information, see
www.maxstream.net
2.2
Technical Support Contacts
For manual updates and assistance, contact Technical Support at the following locations:
North America:
(317) 916-4274
www.heapg.com
email:
techsppt@heapg.com
19 MAR 2007
- Direct Sequence Spread spectrum (DSSS)
- 2.4GHz (802.15.4)
- -100dBm
- 10-63mW (adjustable to match antenna to maximum EIRP)
- up to 100 feet
- 250,000bps
Europe:
(+) 353-21-4321-266
www.horner-apg.com
email:
techsupport@hornerirl.ie
MAN0943-01
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