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Abstract

The access control intercom is part of an airport's physical security system that connects Aviation Security (AVSEC) officers in the field with the On Duty (OD) monitoring room through a structured cabling network. On 24 January 2025, a malfunction was found in the intercom at Boarding Lounge Garbarata Way Gate B5, Terminal 1B (BL GW B5) of Soekarno-Hatta International Airport, where the device could not place a call to the AVSEC OD room. This article aims to analyze the cause of the malfunction and document the repair process. The method used was field observation and systematic troubleshooting, consisting of inspecting the intercom's condition, conducting a comparative test on a similar unit, and checking the LAN cable network using a LAN Tester. The inspection showed that the comparison intercom functioned normally, while the LAN Tester test on the faulty unit showed only two of nine pins lit (eight data pins and one ground pin), indicating a broken cable path. Further tracing found that the LAN cable on the intercom side was severed, which was attributed to termite damage and is consistent with the minimal maintenance during the approximately four years Terminal 1B was not in operation after the pandemic. The repair was carried out by re-crimping the LAN cable, and the test results showed all pins functioning normally and a successful call to the AVSEC OD room. This case study emphasizes the importance of preventive maintenance and network infrastructure monitoring for rarely used facilities to maintain the reliability of airport access control systems. The study is limited to a single case, and photographic evidence of the cable damage is not presented.

Keywords

access control intercom troubleshooting kabel LAN AVSEC

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References

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