OEM Series 800 Logic Controller Board | Detex 102898 | 12/24VDC Access & Egress Control

Restore a compatible Detex Series 800 controller system with the Detex RLB800 Replacement Control Board, commonly cataloged as Detex Part #102898.

Designed for compatible Detex 10-800, 11-800, and 12-800 controller / power-supply systems, the RLB800 serves as the central logic board that processes door-control inputs and operates locking, alarm, fire-release, and monitoring outputs.

Detex documentation identifies the RLB800 as the controller used throughout the Series 800 architecture, while Detex 12-800 wiring diagrams specifically show the RLB800 Rev. 2.0 board.

Key Features

• Genuine Detex Series 800 replacement control board

• Common replacement part number 102898

• Controller designation: RLB800

• Compatible with applicable:

  • Detex 10-800

  • Detex 11-800

  • Detex 12-800

• Selectable 12VDC or 24VDC control operation

• Programmable access and egress control

• Multiple onboard control relays

• Fire-system integration

• Door Position Switch input and output

• Bolt Position Switch input and output

• Momentary entry and exit inputs

• Local and remote alarm control capabilities

• Battery-backup interface

• Onboard diagnostic indicators

• Programmable timing and operating functions

• Replacement circuit board only

Series 800 Logic Controller

The RLB800 is the logic center of the compatible Detex Series 800 system.

It receives signals from connected devices such as:

• Key switches

• Push buttons

• Access-control systems

• Exit devices

• Door position switches

• Bolt position switches

• Fire-alarm contacts

The controller then processes those inputs and activates the programmed outputs for locks, alarms, door controls, and other connected hardware. Detex describes the 10-800 and 11-800 as universal logic/power controllers capable of controlling up to two doors.

Compatible with Detex 10-800

The 10-800 combines the Series 800 logic controller, power supply, transformer, and enclosure into a complete access/egress control system.

Detex specifies that the 10-800 can control:

• Standard access and egress

• Up to two separate doors

• Two-door interlock applications

• Locks

• Local alarms

• Remote alarms

The RLB800 is the logic-controller portion of this system.

Compatible with Detex 11-800

The 11-800 uses the same fundamental Series 800 control architecture as the 10-800, but includes additional internal mounting and terminal provisions.

Detex describes the 11-800 as essentially the 10-800 system with an additional 24-point terminal strip and internal tray/pan arrangement.

The 102898 / RLB800 board is also commercially cataloged as the replacement controller board for the Detex 11-800.

Compatible with Detex 12-800 Applications

The 12-800 is a Series 800 controller configured and factory-labeled for delayed-egress applications.

Detex offers multiple 12-800 configurations, including DE1 through DE5 variations.

Factory wiring documentation for the 12-800 DE2 specifically identifies the controller as:

RLB800 REV 2.0

Because 12-800 configurations can differ, always duplicate the original programming, jumper positions, dip-switch settings, and wiring when replacing the board.

12VDC / 24VDC Selection

The RLB800 supports selectable:

12VDC or 24VDC

Detex documentation shows the board accepting low-voltage AC or DC input and regulating the output according to the configured jumper settings.

Always configure the replacement board for the voltage required by the existing system before reconnecting locking hardware.

Multiple Control Relays

Detex documents six relays associated with the RLB800 controller board.

These include dedicated and programmable functions for:

• Lock control

• Auxiliary control

• Local alarm

• Remote alarm

• Door status

• Fire-system operation

Many relay functions can be changed using onboard dip switches and jumper settings.

Fire Alarm Integration

The Series 800 controller includes dedicated provisions for fire-system shutdown and release control.

This is particularly important when the controller operates equipment such as:

• Electromagnetic locks

• Delayed-egress systems

• Access-controlled egress doors

• Other fail-safe locking devices

Fire-alarm interface requirements depend on the complete door system and applicable life-safety code.

Door & Bolt Position Monitoring

The RLB800 provides connections for:

DPS – Door Position Switch

Allows the controller to monitor whether the door is open or closed.

BPS – Bolt Position Switch

Allows monitoring of compatible locking-device or latch position.

These inputs can be incorporated into timing, relocking, alarm, and monitoring sequences.

Programmable Delayed-Egress Functions

The Series 800 controller architecture supports programmable timing and delayed-egress functions for compatible systems.

Detex identifies the 12-800 specifically for delayed-egress products and provides dedicated factory wiring configurations for these applications.

Available programming depends on the system configuration and should be duplicated from the original installation when replacing a board.

Battery Backup Interface

The RLB800 contains battery-charge and battery-monitoring provisions.

Detex documentation supports both:

• 12V systems using one 12V battery

• 24V systems using two 12V batteries wired in series

Battery capacity and jumper configuration must match the system requirements.

Batteries are not included with this replacement board.

Onboard Diagnostics

The controller includes onboard indicators to assist service technicians during installation and troubleshooting.

The factory RLB800 diagram identifies indicators including:

• Power

• Watchdog

• System active

• Door status

• Battery / low voltage

• Relay activity

The watchdog circuit provides a visual indication that the controller program is operating.

Product Specifications

Manufacturer: Detex
Product: Series 800 Replacement Control Board
Common Part Number: 102898
Controller Designation: RLB800
Compatible Systems: 10-800, 11-800, Applicable 12-800
Voltage Selection: 12VDC / 24VDC
Control Type: Programmable Door Logic Controller
Door Capacity: Up to 2 Doors Depending on Configuration
Fire Alarm Interface: Yes
DPS Interface: Yes
BPS Interface: Yes
Battery Backup Interface: Yes
Application: Access Control / Egress Control / Delayed Egress
Installation: Inside Compatible Detex Series 800 Enclosure
Component Type: Replacement Control Board

Detex identifies the 10-800, 11-800, and 12-800 as complete systems containing Series 800 electronics, transformer, and enclosure components.

Common Applications

Ideal for repair of Series 800 systems used at:

• Schools

• Universities

• Hospitals

• Healthcare facilities

• Government buildings

• Warehouses

• Retail facilities

• Office buildings

• Institutional facilities

• Access-controlled entrances

• Delayed-egress openings

• Electrified exit doors

Replacement Applications

Replace the RLB800 when the existing control board has been properly diagnosed with issues such as:

• No controller operation

• Failed relay output

• Input not responding

• Programming failure

• Watchdog failure

• Fire-interface problems

• Door monitoring problems

• Physical PCB damage

• Electrical component failure

Before replacing the board, verify:

• Transformer output

• Incoming power

• System voltage

• Connected locking hardware

• Field wiring

• Fire-alarm circuit

• Battery condition

• External switches and sensors

Important Programming Note

The RLB800 is a programmable controller.

Before removing the existing board, document:

• All wire locations

• Jumper positions

• Dip-switch positions

• Voltage selection

• Relay configuration

• Timing settings

• Door A / Door B configuration

• Delayed-egress programming

Photographing the existing board before removal is strongly recommended.

A new board may require configuration to duplicate the original controller's operation.

Important Compatibility Note

Before ordering, verify:

Existing controller designation: RLB800

and, where applicable:

Replacement Part Number: 102898

Detex Series 800 controllers have been produced in multiple configurations and revisions. Do not replace a board solely because another Detex controller looks similar.

In particular, this RLB800 / 102898 board should not be confused with later Detex universal controller assemblies such as the 106595 series.

What's Included

(1) Detex RLB800 Replacement Control Board