|
Parameter |
Value |
Notes |
All Devices |
Radio |
Operating frequency range |
2405 ~ 2475 MHz |
ISM band |
Available Communication Channels |
15 |
IEEE 802.15.4 channels 11 ~ 25 |
Channel spacing |
5 MHz |
|
Maximum RF transmit power |
18 (63) dBm (mW) |
|
Receiver sensitivity |
-95 dBm |
At 10 -5 bit error rate |
RF data transmission rate |
250 Kbits/sec |
|
Channel agility |
Yes |
Automatically realigns RF channel when network (MeshGate) switches to a new channel. |
Environmental & Mechanical |
Operating temperature range |
-10 ~ +55 ° C |
Applied only to radio box; -34 ~ +110 ° C (-29 ~ +230 ° F) operating and measurement range for thermistor probes |
-14 ~ +131 ° F |
Storage temperature range |
-40 ~ +85 ° C |
|
-40 ~ +185 ° F |
|
Regulatory Compliance |
FCC, IC & CE for unlicensed operation |
|
|
Modbus RTU Wireless Gateway |
Power |
External DC supply |
4.5 ~ 30 VDC |
|
Communication Interface |
Physical connector |
DB-9 |
RS-232 and RS-485 |
Serial interface |
RS-232 & RS-485 |
8 data bits, 1 stop bit, no parity bit |
Baud rate |
2400, 4800, 9600, 19200, 38400, 57600, & 115200 bits/second |
|
Communication protocol |
Modbus RTU |
MeshGate II operates as proxy server of data from all devices in the mesh network; all wireless devices including MeshGate II are slave devices to the Modbus host. |
Modbus TCP Wireless Gateway |
Power |
External DC supply |
12 VDC |
|
Communication Interface |
Physical connector |
RJ45 |
|
Interface |
Ethernet 10Base-T/100Base-TX |
Supports TCP/IP networking stack with DHCP or static IP assignment |
Communication protocol |
Modbus TCP/IP |
Modbus TCP Gateway operates as proxy server of data from all devices in the mesh network; all wireless devices including itself are Modbus slave devices to Modbus masters. It supports communication with Modbus TCP devices through its Ethernet interface. |
Analog/ Digital I/O Module |
Power |
External power supply |
9 ~ 24 VDC |
|
Power supply voltage for external devices |
3.0 ± 0.5% VDC |
Max output current 50 mA |
Digital Input / Output Channels |
Number of channels |
4 channel |
Each of the four channels can be configured as digital input or output channel; DIO1 and DIO3 can be configured through jumper for opto-isolated switching output and return. |
Logic “1” input voltage |
2.8 VDC |
Minimum |
Logic “0” input voltage |
0.5 VDC |
Maximum |
Maximum output current |
4 mA |
Maximum |
Opto-isolated Output Channels |
Number of channel |
1 channel |
Remotely controlled based on schedule or real time command |
Maximum voltage |
50 V, AC or DC |
|
Maximum current |
1 A |
|
Analog-to-digital Converter Channels |
Number of channels |
4 channel |
Through jumpers, two channels can be configured to accept 0 ~ 3 VDC or 0 ~ 10 VDC analog signals, and the other two can be configured to accept 0 ~ 3 VDC or 4 ~ 20 mA analog signals |
Input impedance |
197 (3V range) 4 (10V range) |
|
Acquisition time |
20 m sec |
Minimum |
Resolution |
10 bits |
|
OEM Module w/Serial UART |
Power |
External power supply |
3.3 VDC |
|
Digital Input / Output Channels |
Number of channels |
4 channel |
The four channels can be configured as four general purpose digital I/O channels or as one UART serial interface port |
Logic “1” input voltage |
2.8 VDC |
Minimum |
Logic “0” input voltage |
0.5 VDC |
Maximum |
Maximum output current |
4 mA |
Maximum |
UART Serial Interface |
Number of ports |
1 |
The four general purpose digital I/O channels can be configured to support UART serial interface |
Signal pins |
4 |
The four signal pins include TX (to EN-6424), RX (from EN-6424), RTS, and CTS |
Baud rate |
9,600 bits/sec |
|
Serial port specifications |
8 data bits, 1 stop bit, 0 parity bit |
|
Maximum serial packet length |
80 bytes |
|
Analog-to-digital Converter Channels |
Number of channels |
4 channel |
Through jumpers, two channels can be configured to accept 0 ~ 3 VDC or 0 ~ 10 VDC analog signals, and the other two can be configured to accept 0 ~ 3 VDC or 4 ~ 20 mA analog signals |
Input impedance |
197 |
|
Analog input voltage range |
0 - 3.3 VDC |
|
Acquisition time |
20 m sec |
Minimum |
Resolution |
10 bits |
|
Temperature / Humidity Sensor Module
|
Power |
External DC supply |
4.5 ~ 30 VDC |
|
Internal batteries |
4.5 VDC |
Three AA size batteries |
Expected battery life |
5 Years |
Alkaline batteries, 5 minutes transmission interval; battery life reduces with shorter transmission intervals |
Temperature Measurement |
Measurement range |
-40 ~ +55 ° C |
|
-40 ~ +131 ° F |
|
Repeatability |
± 0.1 ( ± 0.18) ° C ( ° F) |
|
Accuracy |
± 0.5 ( ± 0.9) ° C ( ° F) |
In 20 ° C (68 ° F )~ 30 ° C (86 ° F) range |
± 1.4 ( ± 2.5) ° C ( ° F) |
At -10 ° C (-14 ° F) and +55 ° C (131 ° F) |
± 2.0 ( ± 3.6) ° C ( ° F) |
At -40 ° C (-40 ° F) and +90 ° C (194 ° F) |
Response time |
5 ~ 30 Seconds |
|
Humidity Measurement |
Measurement range |
0 ~ 100% RH |
|
Repeatability |
± 0.1 % RH |
|
Accuracy |
± 3 % RH |
For 20 ~ 80% RH |
± 3 ~ ± 5 % RH |
For 0 ~ 20% & 80 ~ 100% RH |
Response time |
4 Seconds |
|
Wireless Signal Repeater |
Power |
External DC supply |
4.5 ~ 30 VDC |
|
Minimum supply voltage |
3.1 VDC |
|