User guide

Appendix B. Hardware Installation

B-4

B.3 9522B Modem Installation

The Base station installation should be conducted before proceeding to the field to

conduct the Remote station installation. With the Base station installed first, it

will provide the opportunity to test the communications from the Base station

before going to, and/or while still in the field. If there is a malfunction, you may

be able to address the problem without having to return to the Remote station.

The modem installation should employ the following steps:

1. Secure the COM9522B interface and 9522B modem in the enclosure in

appropriate locations using the optional MB3 if purchased. Be sure to

keep in mind all cable runs (i.e. antenna, power/control, and interface).

2. Connect the ribbon cable to the modem. Connect the other end of the

ribbon cable to the COM9522B.

3. Connect the serial cable (base station) to the data port of the interface to

the PC serial port.

4. For the remote station connect the 9876-001 serial cable between the

COM9522B data port and the Datalogger RS232 port (or via another

interface if required).

5. Connect the Antenna Cable to the “ANT” connector of the modem.

6. Connect the bare leads of the COM9522B to datalogger and power

supply. Start your connections with the power control leads. Be sure

power is off at the power supply when making these connections.

Once all the items are attached, power can be applied to the modem. For initial

testing it is sometimes useful to move the control wire from the control port on

the logger to 12V to turn the modem on for the duration of the tests.