Section 1 TRACER Description
Three SMA connectors, located on the RFC module, provide RF and IF connection points. A test point is provided for monitoring the received signal strength indicator (RSSI). The voltage (relative to the GND test point) present on this test point represents the level of the received signal. This signal is used to align the antenna when installing the system and to verify the link is performing as designed.
NOTE
The voltage level present at the RSSI test point represents a relative signal level of receive strength from the far end. No direct correlation can be made between RSSI voltage level and actual receive level in dBm. This test point is provided to assess relative signal level for alignment of antennae.
The only connections that must be made in the field are a coax connection between the baseband processor and the RFC and a coax connection between the RFC and the antenna. These connections require male, type N coax connectors.
The IF connector provides the connection between the baseband processor and the rackmounted or mastmounted RFC. An 8” IF cable (ADTRAN P/N 3125RF027) is provided for rackmount systems. The TO ANTENNA connection provides the connection between the RFC and the antenna.
CAUTION
When connecting an RF converter (RFC) to a Baseband Processor (BBP), verify that the connector labeled “IF” on the rear panel of the Baseband Processor is connected via coax to the connector labeled “IF” on the RF converter. Connecting the Baseband Processor to the incorrect connector on the RF converter will cause the internal 1 amp 250 V fuse to blow in the Baseband Processor. This fuse is accessed by removing the top of the Baseband Processor, and is located on the left side of the chassis when facing the front panel.
The RFC module is enclosed in either an
TRACER
IFANTENNA
Figure 1-10. Front and Rear of Rackmount RFC Housing
TRACER 2 X E1 User’s Manual | 9 |