Your Trango SDR900H System
Trango Systems, Inc. SDR900H Rev. B
Page
7
Transceiver Operation
Antenna Jack:
The connector is used to connect an appropriate Trango antenna. The
antennas authorized for use with this unit are the whip (AO900-3-P) or the Yagi (AD900-
8Y-RP). Fasten the connector with no more than 8 lb/in of torque. Any modification to
the antenna jack may void the user’s authority to operate the equipment, and will void the
manufacturer’s warranty.
Data Interfaces:
There are two data interfaces: a terminal block, and a RJ11 connector.
In order to avoid damage to the unit, do not use both the terminal block and the RJ11
connector for data output simultaneously.
1) Terminal Block – Two lugs serve as the input for simplex data from 1200 to
57600 bps. When transmitting under RS485/422 protocols, data wires from the
PTZ controller will connect to the RX+ and RX- of the SDR900H terminal block.
On the camera side connections are made to TX+ and TX- on the SDR900H
terminal block. For RS232 the connections are to TD, RD, and GND.
2) RJ11 Connector (J2) – Attach the programming cable, CBLDAT-1, to this
connector in order to use the SDRLink set-up program.
Power Input:
Accepts a power source between 6 and 13 volts DC. It is highly
recommended that the supplied power adapters (7VDC) be used to reduce the heat
dissipated from the unit. If another power adapter is to be used, ensure that it is well
regulated (+/-5%). Batteries may be used as an external power source as well. When the
radio is transmitting the current draw is typically 250 mA, and 150 mA when receiving.
LEDs:
There are four LEDs that provide quick status information for the unit.
RF TX – On when power is applied, blinks when data is transmitted out of RF interface.
RF RX – Blinks when data is received into the RF interface.
Serial RX – Blinks when data is received into the serial interface.
Serial TX – Blinks when data is transmitted out of the serial interface.
Switch 3:
Used to configure mode of serial data to be transmitted. (RS232/422/485)
For RS232 operation positions 1-4 should be in the off (down) state.
For RS422 operation position 2 and 3 need to be off (down), and 1 and 4 on (up).
For RS485 operation position 4 should be off (down), and 1-3 on (up).
Switch 4:
This switch is not used for PTZ control, and both position 1 and 2 should be in
the off (down) state.
Config Button:
Used to change the SDR900H mode from operation to configuration, so
settings, such as address, baud rate, hopping sequence, etc, can be modified.
Reset Button:
When in configuration mode if reset button is pushed all changes that
have not been saved will be discarded and the previous values restored.
