Table 40. Rf Cable Identification Tag - Samsung RF4402d-D1A Installation Manual

Checking RF Cable Connection
After connecting the RF cables, perform the continuity test and feeder cable return
loss to check if the RF cable is changed and measure VSWR of antenna and RF
cable.
Connection Part of System External Interface Connector
Measure all cables of section ①~②. The measured VSWR should be the
specification value or less. If the VSWR exceeds the specification value,
disassemble the connector and measure each section separately.
If the VSWR value for minimum cable bend radius and length of RF cable is not
applied, system may not work properly because RF signals cannot transmit or
receive smoothly. So, the VSWR value for minimum cable bend radius and length
of RF cable must be checked and applied.
When measuring VSWR, if operator opens the antenna port when the transmission
output is not completely off, a spike signal may flow into the reception path, which
may cause damage to LNA. Make sure the transmission output is completely off
when measuring VSWR.
When RF cable connection integrated RET signal and DC power is applied using
ANT1 port of RRH, RET cable should be installed separated from RF cable to RF
Antenna.
Depending on the supplier or manufacturer of antenna/arrestor the connector type
may be different. Also, the detail specifications of a connector may be different
depending on cable type even for the same connector type. Therefore, check the
detail specifications of a connector before preparing parts.
Ex) DIN Type-Male: for 1/2 in. Feeder line, for 7/8 in. Feeder Line
RF Cable Identification Tag Installation
Attach the identification tape in the below table to the RF cable.

Table 40. RF Cable Identification Tag

Category Description
Installation position Attach the identification tag to the both ends of the antenna.
Materials Use the material of aluminum coated by vinyl for the identification tag.
Fixing method Antenna side: Attach the tag to the feeder line using binding strings through the two
holes on the tag.
Equipment Side: Cover up the feeder line with the tag and fix it using binding strings
through the two holes on the tag.
Identification method The markings must be prevented from being erased by using relief engraving or
coated labels.
RF4402d Series Installation Manual v1.0
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Chapter 3 Connecting Cables
②
①
Antenna
107