Campbell csi mAXON, Instruction Manual

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Section 3. Radiotelemetry Network Components
3-15
networks. The PS12LA cannot be modified to the PS512M. The maximum
current drain on the 5 Volt supply of the PS512M is 150 mA.
3.5 RF310B Base Station
3.5.1 RF310B Introduction
The RF310B Base Station provides a "single box" desktop base station with the
following features:
•
Internal RF modem.
•
25-pin RS-232 port for connection to IBM PC.
•
110 VAC/12 VDC transformer and mount for the base radio.
•
Easy access to radio for antenna cable connection.
The RF310B Base Station includes an RF Modem with a carrier detect light.
The RF Modem sits directly behind the RF310B front panel. For a description
of the Carrier Detect Light and the communication protocol, refer to Section
3.1. The RF Modem comes shipped from the factory with a Station ID number
of 254. Under most circumstances there is no need to change this address.
The RF310B 25-pin female port connects to the computer RS-232 port. The
computer RS-232 port may be either 9 or 25 pin. The RF310B's 25-pin port is
configured as Data Communications Equipment (DCE) for direct cable
connection to Data Terminal Equipment (DTE), such as an IBM-PC serial port.
Table 3-7 shows the pin description.
3.5.2 220, 230, and 240 VAC Conversion
The RF310B can be used with 220, 230, or 240 VAC if a small wiring
modification is done.
1. First, disconnect any AC power!
2. Lift the cover off the RF310B and locate the power supply (P/N 4918) as
shown in Figure 3-8.
3. Unscrew the four Phillips head screws on top of the power supply and turn
the power supply upside down.
4. Clip the wire ties holding the power supply leads to the base.
5. With the power supply on its back, locate pins 1 through 5. The power
supply is shipped from the manufacturer configured for 120 VAC with pins
1 and 3 jumpered, pins 2 and 4 jumpered, and AC power coming onto pins
1 and 4. These connections must be desoldered.
6. Resolder the pins as shown in Table 3-8 for the Power Conversion you
require.