1-2
IM 04L51B01-41EN
1.2 Specifications
1.2.1
Wireless Communication Function
Functions
Item
Description
Coordinator
(GX20/GP20/GM10 (/CM2))
Router (GM10 (/CS2))
Router (UT)
Standard
FCC Part 15 Subpart C compliant (§15.247)
Carrier frequency band
902.1 to 927.9 MHz
Wireless channel bandwidth
600 kHz
Number of wireless channels
43 ch
Maximum transmitter output
20 mW
Modulation method
GFSK
Antenna
External antenna (sold separately), SMA connector
Maximum number of router
receptions
100 (number of router receptions
by a single coordinator, varies
depending on the communication
conditions)
—
—
Maximum packet size
2,048 bytes
—
Data rate
100 kbps max.
Communication distance
Approx. 800 m with a clear line-of-sight (depends on the operating environment)
1
Communication format
Mesh, multi-hop (maximum number of hops: 16)
LED display
Displays the wireless status using ST1 green/red and ST2 green/red ( for details, see section 2.2.1,
“LED Display”)
Security function
AES 128 bit encryption
Implemented protocol
Modbus (master) protocol
Modbus (slave) protocol
Modbus master function
(/CM2, /MC option)
2
Data can be written and read from
Modbus slave devices.
• Communication cycle:
500 ms, 1 s, 2 s, 5 s, 10 s, 1 min
(If the receiver function is set to
wireless input unit, see the user’s
manual of the wireless input unit.)
Note: Only the above
communication cycles will work
properly.
• Number of commands: 100
• Command types: Off, read, write
• Connection destination address:
1 to 247
• Transmission command:
INT16, UINT16, INT32_B,
INT32_L, UINT32_B, UINT32_L,
FLOAT_B, FLOAT_L, BIT
—
—
Modbus slave function
(/CS2 option)
—
Data can be written and read
from Modbus master devices
(coordinators (/CM2 option)).
Data can be written and read from
Modbus master devices.
Configuration and
measurement communication
The following functions are available using the dedicated software.
3
• GX20/GP20/GM10 wireless communication settings
• Information about routers connecting to the GX20/GP20/GM10
• GX20/GP20/GM10 wireless communication status monitoring
The following functions are
available using the dedicated
software.
3
UT52A/MDL, UT32A/MDL wireless
communication configuration
UT52A/MDL, UT32A/MDL wireless
communication status monitoring
External interface for wireless
configuration
USB 2.0 (mini-B type), reboot switch: for rebooting the system after changing wireless settings
1 The communication distance varies depending on the installed antenna as follows:
Antenna type
Line-of-sight distance
Coordinator
Router
Sleeve antenna
Sleeve antenna
Approx. 800 m
Roof top antenna
Roof top antenna
Approx. 800 m
