1. Introduction
The DSC PK5508 is an 8-zone LED keypad designed for use with DSC security alarm systems. It provides a user interface for arming and disarming the system, viewing system status, and performing other basic security functions. This keypad features an 8-zone LED display for clear status indication and a built-in 433MHz wireless receiver, allowing for integration with compatible wireless security devices.
This manual provides essential information for the proper setup, operation, and maintenance of your DSC PK5508 keypad.
Figure 1: Front view of the DSC PK5508 8-Zone LED Keypad. This image shows the numerical keypad, function buttons, and the 8 LED zone indicators.
2. Setup and Installation
Installation of the DSC PK5508 keypad should be performed by a qualified security technician to ensure proper functionality and compliance with local codes. The keypad connects to the main security control panel via a 4-wire connection (Red, Black, Yellow, Green).
2.1 Mounting the Keypad
- Select a suitable indoor location, typically near an entry/exit point, away from extreme temperatures or moisture.
- Carefully remove the backplate from the keypad.
- Mount the backplate securely to the wall using appropriate screws and anchors.
2.2 Wiring Connections
- Connect the Red wire to the AUX+ terminal on the control panel.
- Connect the Black wire to the AUX- terminal on the control panel.
- Connect the Yellow wire to the KEYBUS Yellow terminal on the control panel.
- Connect the Green wire to the KEYBUS Green terminal on the control panel.
- Ensure all connections are secure and correctly polarized.
2.3 Initial Power-Up
Once wiring is complete, apply power to the security control panel. The keypad should illuminate and perform an initial self-test. If the keypad does not power on, verify all wiring connections and power supply to the control panel.
3. Operating Instructions
This section outlines the basic user operations for the DSC PK5508 keypad.
3.1 Arming the System
- To Arm Away: Enter your 4-digit User Code. The "Armed" indicator will illuminate, and the exit delay will begin.
- To Arm Stay: Press the [Stay] button, then enter your 4-digit User Code. The "Armed" indicator will illuminate, and the exit delay will begin (typically shorter for Stay arming).
- Quick Arm (if enabled): Press and hold the [Stay] button for 2 seconds for Stay arming, or the [Away] button for 2 seconds for Away arming.
3.2 Disarming the System
To disarm the system, enter your 4-digit User Code. The "Armed" indicator will turn off, and any alarm in progress will cease.
3.3 Checking Zone Status
The 8 LED indicators on the keypad correspond to zones 1 through 8. A lit LED indicates that the corresponding zone is open or in an alarm condition. A flashing LED may indicate a bypassed zone or a trouble condition, depending on system programming.
3.4 Bypassing Zones
Bypassing a zone allows you to arm the system while a specific zone is open or faulty. This function is typically used for temporary situations, such as leaving a window open.
- Press the [*] button, then [1].
- Enter the 2-digit zone number(s) you wish to bypass (e.g., 01 for Zone 1, 02 for Zone 2).
- Press the [#] button to exit.
- Arm the system as usual. Bypassed zones will be ignored until the system is disarmed.
3.5 Viewing Trouble Conditions
If the "Trouble" indicator is lit, press the [*] button, then [2] to view the specific trouble condition. The zone LEDs will illuminate to indicate the type of trouble (e.g., low battery, AC failure, system fault). Consult your installer or the main control panel manual for a complete list of trouble codes.
4. Maintenance
Proper maintenance ensures the longevity and reliable operation of your DSC PK5508 keypad.
4.1 Cleaning
Clean the keypad surface periodically with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the keypad, as this can damage the electronics or finish.
4.2 Regular System Checks
It is recommended to test your security system, including the keypad, regularly (e.g., monthly). This involves arming and disarming, and if applicable, testing individual zones. Refer to your main security system manual for detailed testing procedures.
5. Troubleshooting
This section provides solutions for common issues you might encounter with your DSC PK5508 keypad. For complex issues, always contact your security system installer or a qualified technician.
- Keypad is unresponsive or blank:
- Check the power supply to the main control panel.
- Verify all wiring connections between the keypad and the control panel are secure and correct.
- A power cycle of the main control panel (disconnecting AC and battery, then reconnecting) may resolve temporary issues.
- "Trouble" light is on:
- Press [*] then [2] to identify the specific trouble condition.
- Common troubles include low battery (main panel or wireless devices), AC power failure, or system faults. Address the indicated issue.
- System fails to arm:
- Ensure all zones are closed (no zone LEDs lit, unless intentionally bypassed).
- Verify you are entering the correct User Code.
- Check for any trouble conditions that might prevent arming.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | PK5508 |
| Product Dimensions | 7 x 2 x 5 inches |
| Item Weight | 10.4 ounces |
| Manufacturer | DSC |
| Keypad Type | 8-Zone LED |
| Wireless Receiver | Built-in 433MHz |
