INSTALLATION
Interface Pinouts
The RS-232 Interface of the SpeedNet Radio is configured as Data Communications Equipment
(DCE).
Pin Function
Description
1 NC
No
Connection
2 TXD
RS-233
Transmit
3 RXD
RS-233
Receive
4 NC
No
Connection
5 GND
Signal
Ground
6 NC
No
Connection
7
CTS
Clear to Send
8
RTS
Request to Send
9 NC
No
Connection
Figure 4. SpeedNet Radio RS-233 Interface Pinout.
14
1072-510
If you are using different cables, always verify cable loss prior to installation.
NOTE: Table 4 assumes 1 watt output power from the SpeedNet Radio.
Antenna Gain
Cable Type/length/loss
EIRP
+8.2 dBi
135' LMR-900, 2.3 dB loss
+35.9 dBm
+10.2 dBi
250' LMR-900, 4.3 dB loss
+36.0 dBm
+12.1 dBi
310' LMR-900, 5.3 dB loss
+35.9 dBm
Table 4. Antenna Cable Loss Examples with LMR-900 Cable.
NOTE: Table 3 assumes 1 watt output power from the SpeedNet Radio.
Antenna Gain
Cable Type/length/loss
EIRP
+8.2 dBi
90' LMR-600, 2.3 dB loss
+36.0 dBm
+10.2 dBi
170' LMR-600, 4.3 dB loss
+36.0 dBm
+12.1 dBi
210' LMR-600, 5.3 dB loss
+36.0 dBm
Table 3. Antenna/Cable Loss Examples with LMR-600 Cable.
