K38
32-Zone Wireless Fixed LCD Keypad
Installation Manual V1.0 and higher
Image of the Paradox K38 wireless LCD keypad, showing a numeric keypad layout with function keys and an LCD display.
The K38 (32-Zone Wireless Fixed LCD Keypad) provides the same functionality as standard hardwired keypads, including system programming. Unlike conventional wireless keypads which must be manually updated with new event information, the K38 displays new events live, as they happen.
Step 1: Powering the Keypad
A. Installing the Batteries
The K38 comes with its primary power source (two AA batteries) already installed. To power the keypad, with the backplate removed, open the battery compartment and remove the plastic tab. IMPORTANT: Do not use rechargeable batteries to power the K38.
Warning: Risk of explosion if the battery is replaced by an incorrect type. Dispose of the used battery according to the manufacturer's instructions.
B. Connecting the DC Source (optional)
When connecting the DC source, use PA6 6VDC Power Adapter Plug only. Do not use a 16VAC transformer.
Warning: Use only external power supply that is safety approved according to IEC/EN 60950-1 with rated voltage of 6VDC and rated current of 2A maximum.
Available PA6 plug types:
- ACP-EU (Europe)
- ACP-UL (North America)
- ACP-CH (China)
- ACP-UK (United-Kingdom)
- ACP-AUS (Australia)
DC Power Failure trouble display
Since the DC source is optional, the trouble display must be enabled when a DC source is used.
To enable: press [ENTER], enter your [INSTALLER CODE], then press and hold the [i] key until a confirmation beep is heard.
To disable: press [ENTER], enter your [INSTALLER CODE], then press and hold the [6] key until a confirmation beep is heard.
Step 2: Assigning the Keypad
Automatic Assignment
After panel power-up, the control panel will open a 10-minute window for Automatic Assignment. Press and hold the [i] and [BYP] keys for three seconds; the TX icon will flash. The keypad is assigned to the control panel. Up to 8 wireless keypads can be assigned within the ten-minute window.
Compatibility Check
If the K38 keypad is not compatible with the current panel version, the following Trouble will be displayed: [TROUBLE: flashing] [17: on]. If this occurs, update your MG/SP panel to the latest version.
Standard Assignment
Using an assigned keypad, press [ENTER]. Enter your [INSTALLER CODE] or [MAINTENANCE CODE]. Go to sections [571] to [578] to assign keypads 1 to 8, respectively. Enter the serial number of the K38 into one of the eight sections to assign it to the panel.
K38 (backplate removed)
Description of the backplate removed view: shows the battery compartment, optional power connector, and firmware upgrade port.
Removing the Backplate
To remove the K38's backplate, insert a screwdriver and push down in the direction of the arrow [↓].
The button labeled PUSH is visible.
To remove the keypad when wall-mounted, slide the keypad upwards [↑].
Components visible: Optional power PA6 (6VDC), Primary power AA batteries x2, Firmware upgrade port cover.
Upgrading Keypad Firmware
To upgrade the keypad, remove the firmware upgrade port cover and connect the 307USB Direct Connect Interface to the upgrade port. For connection and upgrade instructions, go to paradox.com (> Software > BabyWare > Firmware Upgrade Instructions).
Wireless Keypad Signal Strength
To view the wireless keypad signal strength, see sections [591] to [598]:
| Signal Strength | Keypad Audible Indicator |
|---|---|
| 1 to 4 (relocate wireless keypad) | 1 beep |
| 5 to 7 | 2 beeps |
| 8 to 10 | 3 beeps |
Wireless Keypad Options
To toggle wireless keypad supervision options, see section [588]:
| Option | Keypad 1 Supervision | Keypad 2 Supervision | Keypad 3 Supervision | Keypad 4 Supervision | Keypad 5 Supervision | Keypad 6 Supervision | Keypad 7 Supervision | Keypad 8 Supervision |
|---|---|---|---|---|---|---|---|---|
| OFF | Disabled | Disabled | Disabled | Disabled | Disabled | Disabled | Disabled | Disabled |
| ON (default) | Enabled | Enabled | Enabled | Enabled | Enabled | Enabled | Enabled | Enabled |
Display Mode
To toggle Display Mode, see section [587]:
| Option | Live Display Mode |
|---|---|
| OFF | Disabled |
| ON (default) | Enabled |
The K38 has two display modes. By default, the keypads will show all events (e.g. zones in alarm, bypassed zones, etc.) live as they occur. Alternatively, with Live Display Mode off, the system will only display zones that cause an alarm, entry delay or exit delay. To see the status of all zones, press the [i] key. Zones that are open but have not triggered an alarm will only be displayed after pressing the [1] key. The display will turn on, showing the status of all zones at the time the [1] key was pressed. The K38 display will turn off after 20 seconds.
Power Save Mode
If a 6VDC adapter is not connected to the keypad, the display will go into power save mode to conserve battery life. The K38 display will turn off after 20 seconds.
IMPORTANT: When the keypad is in power save mode, the K38 will only display alarms, arming events (exit delays) and entry delays. To activate the display and see the status of the system, press the [i] key.
Power / RF Feedback
K38 - TX Icon
Fast Flashing = Transmission/reception in progress
Trouble
Group [16]: Wireless keypad communication failure.
Technical Specifications
| Specification | Details |
|---|---|
| RF frequency | 433MHz or 868MHz |
| Primary power source | Two AA batteries |
| Backup power source | 6VDC (300mA) |
| Battery life | Up to 1 year |
| Range (typical in a residential environment) | 40m (130ft) |
| Compatibility | MG5000 V3.2 or higher, MG5050+ V1.0 or higher; Spectra SP series V3.2 or higher (requires RTX3 V1.4 or higher); SP+ V1.0 or higher |
| Operating temperature | 0°C to 50°C (32°F to 122°F) |
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