Besam SL500 & Unislide Switch Daughter Board
Mode Selector & Accessory Board Installation Guide
Field Technical Sheet: FTS 14-007
Product: Besam SL500 / Unislide
Overview
This technical bulletin explains the proper installation and wiring of mode selectors used with the new SL500 accessory board (Part #1011621).
The guide covers:
- Digital mode selector connections
- Key switch connections
- Knob switch connections
- Remote control / night mode wiring
- Accessory board terminal descriptions
- Unislide accessory board replacement procedures
Source:
SL500 Mode Selector Wiring
The SL500 accessory board supports several selector options:
Supported Selectors
- Digital Mode Selector
- 5-Position Key Switch
- 3-Position Knob Switch
- Remote Control / Night Mode Switch
The wiring configuration depends on the type of selector installed.
Important Note
A Digital Mode Selector should only be plugged into the new accessory board when:
- An electric lock is installed, and
- The digital mode selector is being used to control that lock.
Source:
Accessory Board Identification
The new accessory board contains the following connection points:
Label | Description |
DMS | Digital Mode Selector |
US-SWITCH | Knob Switch / Key Switch |
MCB | Main Control Board |
AU-SWITCH | Auxiliary Switch |
US-RC | Remote Control / Night Mode |
OFF | Door Disabled |
EXT | Exit Only (One-Way Traffic) |
PAR | Partial Opening |
OPN | Open (Door Held Open) |
PS | Program Selector Including Resistor |
GND | Ground |
RES | Reset |
NC | Not Connected |
Source:
Operating Modes
OFF
Disables automatic door operation.
EXT (Exit Only)
Allows one-way traffic through the door.
PAR (Partial Opening)
Reduces opening width for energy savings or traffic control.
OPN (Open)
Maintains the door in a continuously open position.
RES (Reset)
Resets the operator package.
Source:
Remote Control / Night Mode
The US-RC input is designed for:
- Remote control operation
- Night mode activation
Requirements
- Requires a normally open dry contact
- The circuit must be closed to activate Night Mode
Source:
Unislide Installation Procedure
When installing the new accessory board on a Unislide operator:
- Remove the existing accessory board from its mounting bracket.
- Position the new accessory board and bracket assembly.
- Attach the new assembly to the existing bracket using the supplied hardware.
- Verify all wiring connections before restoring power.
The illustration on page 3 shows the relationship between:
- Existing mounting bracket
- New accessory board
- Mounting hardware
Source:
Installation Notes
Use the Digital Mode Selector Only When:
- An electric lock is present.
- Lock control is required through the selector.
Use the US-SWITCH Connector For:
- 5-position key switches
- 3-position knob switches
Use the US-RC Connector For:
- Remote control systems
- Night mode circuits
Verify:
- Proper grounding
- Correct selector type
- Correct mode wiring before commissioning
Source:
Quick Reference
Accessory Board Part Number
1011621
Compatible Operators
- Besam SL500
- Besam Unislide
Night Mode Input
- Normally Open Dry Contact
- Closed Circuit = Night Mode Active
Selector Options
- Digital Mode Selector
- 5-Position Key Switch
- 3-Position Knob Switch
- Remote Control Input
