User's Manual

162 Mercury Reference Manual 05-4446A01, Rev. C

6.1.2 COM1 Port

The COM1 serial port is a DB-9 female connector. Connect a PC to the

transceiver via this port with a DB-9M to DB-9F “straight-through”

cable. These cables are available commercially, or may be constructed

using the pinout information in

Figure 6-2 and Table 6-2.

Figure 6-2. COM1 Port (DCE)

(Viewed from the outside of the unit.)

6.2 SPECIFICATIONS

General

• Raw Bit Rate: from 600 kbps to 12.7 Mbps (see chart below)

• Frequency Band: 902-928 MHz ISM band

• 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 +30 dBm, RM: 0 to +30 dBm

(1 watt max.)

• RF Output Impedance: 50 Ohms

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