User's Manual Part 3

176 Mercury Reference Manual 05-4446A01, Rev. D
“straight-through” cable. These cables are available commercially, or
may be constructed using the pinout information in
Table 6-2.
6.2 SPECIFICATIONS
General
• Raw Bit Rate: from 600 kbps to 12.7 Mbps
• Frequency Bands: 902-928 MHz ISM band
3.65-3.7 GHz Registered FCC band
• Bandwidths: 900 model—1.75, 3.5 MHz
3650 model—1.75, 3.5, 5, 7 MHz
• Orthogonal Frequency Division Multiplexing (OFDM)
• 200 Carriers per Channel
• Available Configurations:
• Access Point: Ethernet, Serial, GPS
• Remote: Ethernet, Serial, GPS
Radio
• System Gain: 140 dB for 1.75 MHz channel, 137 dB for
3.5 MHz channel
• Carrier Power—AP: -30 to +29 dBm, RM: 0 to +29 dBm (900
models); +23 dBm max. (3650 model)
• RF Output Impedance: 50 Ohms
• Sensitivity and Signal Rate (see
Table 6-3):
Table 6-3. Sensitivity and Signal Rate
Table 6-2. COM1 Port Pinout, DB-9F/RS-232 Interface
Pin Functions DCE
1 Unused
2 Receive Data (RXD) <—[Out
3 Transmit Data (TXD) —>[In
4 Unused
5 Signal Ground (GND)
6–9 Unused