Comen STAR8000C patient monitor keypad to alarm indicator board Wiring spare part

Comen STAR8000C patient monitor keypad to alarm indicator board Wiring

► Brief Description

The STAR8000C patient monitor keypad to alarm indicator board is white. This cable connects the device's human-machine interface module to the audible and visual alarm system via a dedicated signal and power supply link. Its two ends feature a robust design with foolproof features to ensure stability during insertion, removal, maintenance, and device movement. It uses 24AWG high-purity oxygen-free copper wire cores to ensure extremely low voltage drop (less than 0.1V) and uniform indicator light brightness. The outer layer is wrapped in medical-grade low-smoke halogen-free flame-retardant material, which is corrosion-resistant, wear-resistant, and meets hospital infection control and safety standards. Furthermore, its shielding efficiency is over 90dB, effectively resisting electromagnetic interference from devices such as high-frequency electrosurgical units and defibrillators, preventing false alarm triggering or delays.

► Specifications

►Detailed Photos

►Core Functions:

1.Alarm Triggering and Response: When the host detects abnormal patient parameters, an alarm signal drives the indicator light panel via wiring to trigger an audible and visual alarm.

2.Mute and Feedback Linkage: When medical staff press the mute button, a mute signal is transmitted, the indicator light panel pauses the alarm, and the mute status indicator light illuminates, achieving real-time synchronization between operation and status.

3.System Self-Test and Status Synchronization: During device self-test, a self-test signal is transmitted synchronously, triggering the indicator lights to execute an on/off sequence, allowing inspection personnel to intuitively assess the health of the communication link and indicator lights.

►Wiring Methods and Troubleshooting

1.Replacement by Repair Personnel: During repair, the dedicated replacement wiring harness can be directly connected to the corresponding interfaces on the main control board and alarm indicator board. For repair personnel unfamiliar with the internal structure, the core principle is "outside first, inside second": it is recommended to first check the external cables and power supply, and only consider internal wiring issues after confirming they are correct.

2.Analysis by Advanced Users/Engineers: For advanced users with certain electronic knowledge, troubleshooting should begin with powering off, followed by key checks:

Interface Connections: Confirm that the plugs at both ends of the wiring are secure, and that there are no loose or oxidized signs.

Circuit Continuity: Use the buzzer or resistance setting on a multimeter to measure the corresponding pins (whether there is continuity; the resistance should be close to 0 ohms).

3.Power Supply Check: With the device powered on (caution: do not operate without professional knowledge), measure whether the voltage between the VCC and GND pins is a stable 5V. A missing or abnormal voltage may indicate a problem with the power management board or the pre-amplifier power supply to the button board.

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