ALxxF Microwave Radio Indoor Unit (IDU) Users Manual - Meconet

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+V -V GND F1 F2 Pol Sense/ Inrush Limiting Pol Sense/ Inrush Limiting/ OV Prot. Isolated 5V Converter Figure 7 ALXXF Power Converter Simplified Block Diagram Secondary Converters DC to ODU DC Supply to IDU ALCOMA Proprietary Page 12 of 16
2. Setup and Operation To setup a link for operation, proceed with the following steps at each end of the link: 1. Prior to operation, make certain that IDU is configured (via internal switch setting) to DC Power polarity required by the ODU. The factory configuration of the IDU is indicated via marking on the back of the IDU. WARNING: FAILURE TO FOLLOW THIS STEP MAY DAMAGE THE ODU. 2. Prior to connecting DC power to the IDU, connect the IDU and ODU via a 50 ohm coaxial cable. 3. Connect the CLI port to a terminal emulator with settings as defined in Section 1.2.5. 4. Connect an external DC power supply to the IDU front panel interface. Make certain that the polarity of the external supply matches the configuration of the IDU (see Section 1.2.6 for details). 5. Configure the IDU to the desired transport mode via the text menu interface, as described in Section 3. For example, to configure the IDU for Two T1 Channel Transport, make the following menu selections: • From the Main Menu select “1) IDU Control / Status” • From the IDU Control / Status Menu, select “1) Link Configuration” • From the Link Configuration Menu, select “2” for 2DS1 (T1) operation. All aspects of the IDU (line interfaces, modulation mode, FEC, etc…) are automatically configured from this selection. 6. Enter “X” repeatedly to return to the Main Menu. 7. Configure the ODU as desired: • From the Main Menu select “2) ODU Control / Status” • From the ODU Control / Status Menu, configure Tx Power, Tx Channel, and Rx Channel as desired, then enable Tx Power Enable. (Note that the software is currently designed such that ODU PA Tx must be explicitly enabled. The software can be modified to automatically enable the ODU Tx PA upon turn-on if desired by EMS.) When both ends of the link have been configured to the same (or consistent) configurations, acquisition is automatic on both sides. Many aspects of the IDU status are available via the “Link Status” selection under the “IDU Control / ALCOMA Proprietary Page 13 of 16
Page 1 and 2: ALxxF Microwave Radio Indoor Unit (
Page 3 and 4: 1. ALxxF Product Description 1.1. O
Page 5 and 6: ODU I/F (N-Type) BPF BPF BPF BPF LP
Page 7 and 8: 1.2. Front Panel Interfaces 1.2.1.
Page 9 and 10: Pin Signal Name Description 1 Chass
Page 11: For negative voltage operation: •
Page 15 and 16: 3. CLI Text Menu Control and Status

ALxxF Microwave Radio Indoor Unit (IDU) Users Manual - Meconet

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