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ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
2-313
© 2000, ADC Telecommunications, Inc.
TAP-104
Page 2 of 3
HRX2
An incompatible HRX2 is a Version A HRX that has another HRX between it and the HLXC. This
is diagnosed by the HRX1. As a result, systems with two incompatible HRXs cannot be diagnosed.
The HLXC will set the alarm bit for the incompatible HRX2 and report “OLD-HRX-IN” in the
serial number of field of the HRX2 inventory. The MPU should activate the “Version Mismatch”
alarm and display the corrupted serial number.
HRX3
A third HRX is always incompatible. This situation is diagnosed by the HRX2. As a result, systems
with three HRXs when the HRX2 is a Version A cannot be diagnosed. The HRX2 will set the serial
number in the HRX2 inventory data to “3RD-HRX-IN.” The HLXC will set the alarm bit for the
incompatible HLXR.
The MPU should activate the “Version Mismatch” alarm and display the
corrupted serial number. If the HLXC is a Version D or earlier, the alarm bit for dual repeater
incompatibility cannot be set. Thus, the MPU can only display the corrupted serial number.
Dual Repeater Compatibility Indicators
Table 104-1 shows the various configurations that should be tested for dual repeater
compatibility issues. All legal configurations require extensive testing.