PC/104-compatible with XBee Pro transceiver
• Up to 1 mile range (line of sight)
• Operates in the 2.4GHz ISM band
• 60mW transmit power output (100mW EIRP)
Optional GPS Support
• Lassen GPS receiver module provides position,
velocity and time (PVT) data
• Supports TSIP, TAIP, and NEMA 0183 protocols
• Very low power required
• Supports pulse output for accurate time standard
• External powered antenna connection via a
standard SMA connector
! Base I/O address and interrupt settings with jumpers
! For use in transportation, utilities, security, and
remote monitoring applications
! +5 volt only operation
! Low power required
! RoHS compliant
! Small size: 3.6" x 3.8" (90-mm x 96-mm)
! Operating temperature: -40°C to +85°C
WinSystems’ PCM-ZigBee is a PC/104-compatible board
configured with a ZigBee wireless transceiver plus an
optional Trimble GPS receiver. It addresses the unique
need of most remote monitoring and control and sensor
network applications. The PCM-ZigBee will operate
over the full industrial temperature range of -40° to
+85° Centigrade.
FUNCTIONAL CAPABILITY
ZigBee was created to address the market need for a cost-effective, standards-based wireless networking solution that supports low data-rates, low-power consumption, security, and reliability. ZigBee uses the PHY and MAC layers defined by the IEEE 802.15.4 standard for short-distance wireless communications. The board operates at 2.4GHz which is in the ISM (Industrial, Scientific, and Medical) frequency band. The modulecomplies with Part 15 of the FCC rules and regulations and has been certified for use in several European countries as well. 802.15.4 provides a robust foundation for ZigBee, ensuring a reliable solution in noisy environments. Features such as energy detection, clear channel assessment and channel selection help the device pick the best possiblechannel, avoiding other wireless networkssuch as WiFi.Messageacknowledgement helps to ensure that the data was delivered to its destination.Multiple levels of security ensure thatthe network anddata remain
intact and secure.
ZigBee Wireless Modules - The board is configured with either an XBee or XBee-Pro transceiver that is wired to a SMA RF connector on the edge of the board. The difference between these two modules is the amount of power consumed (1mW vs. 60mW) and signal range. For the XBee-Pro configuration, the indoorand urban range is up to 300 feet (100m)and outdoor line-of-sight is up to 1 mile (1500m). For the XBee the urban range is 100 feet (30m) and outdoor range is 300 feet (100m). Selection of the antenna type and placement has a major impact on the range. By default, the XBee modules are configured to support NonBeacon communications. NonBeacon systemsoperate with a peer-to-peer topology and are not dependent upon Master/Slave relationships. This provides fast synchronization times and fast cold start times. It can also be programmed to support NonBeacon mode as either a Coordinator or End Device.
In a NonBeacon (w/Coordination) system, the Coordinator mode can be configured to use direct and indirect transmissions. It will also support Unicast or Broadcast communications.The ZigBee module requires a serial asynchronous data stream for command and data. If the data can not be sent out immediately (for example if it is currently receiving data) then the serial data will be stored in a buffer and sent when the RF channel is clear.
Serial Controller - A 16C552 dual channel UART is the serial communication controller that interfaces to the PC/104 bus. It has two independent, double buffered, asynchronous channels that are 16C550 software compatible. The UART contains on-chip software programmable baud rate generators with data rates selectable from 1200 through 115,200 bits persecond. Each channel has a 16 byte transmit and receive FIFO. This increases the service interval giving the external CPU additional time for other applications and reducing the overall interrupt servicing time. Automatic hardware RTS and CTS flow control is used to prevent data overrun to the local receiver FIFO and remote receiver FIFO. One of the UART channels is wired to the ZigBee module and the other is wired to the optional GPS module. Each UART has a separate I/O jumper block to map it within the PC/104 address space.
Optional GPS - This board can support an optional Trimble LassenIQ GPS receiver. This is a very low power GPS solution designed to provide position, velocity, and time (PCT) data using the most popular standard protocols: TSIP (Trimble Standard Interface Protocol), TAIP (Trimble ASCII Interface Protocol), an NMEA 0183. These protocols are compatible with most commercial navigation or map software packages. Also, a battery is included to
store data The PCM-ZigBee does not normally includethe GPS module. It is a custom configuration option. Contactthe factory forpricing and availability.
Interrupts - Interrupts are generated on error conditionsand/or receive and transmit buffer status for eachof the serial channels. Each of the interrupt outputs iswired to a jumper header and then to the PC/104 Busconnector. The PCM-ZigBee supports IRQ channels 3,4, 5, 6, 7, 9, 10, 11, 12, 14, and 15.If the GPS module is installed, then the 1 pulse persecond output can be connected to an IRQ input. PC/104 Interface - The PCM-ZigBee is I/O mapped.Each channel requires eight contiguous port addresses and each is independentlydecoded within the 10-bit I/O map from 0 to 3FF hex.
Antenna Options - The PCM-ZigBee uses a SMA connector for the most flexible cabling and antenna options. A dipole, omni-directional or yagi antenna can be used. When integrating high-gain antennas, European regulations stipulate the maximum EIRP power maximums. It is the responsibility of the OEM to make sure that they comply with the applicable FCC regulations and to the European harmonized EMC and low voltage/safety standards.
Power Supply - A 3.3 volt regulator is on board to supply power to the XBee or XBee-Pro module so that the PCM-ZigBee board only requires +5 volts to operate.
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