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Mount the backplate using countersunk headed screws adjacent to the opening edge 
of the door.

If fixing hole ’A’ is used then the breakout must be removed and the screw must not 
protrude.

Feed the required cables through the backplate:

·

The cable from the controller.

If wall tamper function is to be used then breakout ‘B’ must be removed and an 
appropriate wall screw fitted through the hole to actuate the tamper lever.

2

1

Mount the Backplate

Reader Connections

The S884-OSDP reader is a 
keypad. The reader is configured for RS485 / OSDP communications. 

This reader is for indoor Use Only.

The S884-OSDP reader will read smartMAX encoded MIFARE cards and card 
serial numbers from most ISO 14443A smart cards which have a 4-byte UID (User 
Identification).  

For additional information regarding the installation, configuration and proper use of 
this product:
SMS User Guide, P/N 9600-0429, 
M2150 Access Control Design Guide, P/N 9600-0420, 
M2150 Intrusion Guide, P/N 9600-0540,
M4000 Commissioning Guide

contactless smart-card reader, with Graphic LCD and 

, P/N 9600-0698

The securing screws ‘C’ are integral to the backplate and are unscrewed via 
the small holes in the enclosure so that the screw heads  locate in the 
counterbored holes on the inside of the enclosure.

You should find 

that the 

backplate has 

holes for 

connection to 

most standard 

electrical 

backboxes.

C

A

B

Installation and User Instructions for S884 OSDP Readers

0V

Rx+
Rx-

12V

Controller

0V

0s

+V

RS485 (OSDP)

1s

Reader 

TB1

Connect shield at 
controller end only.

Slide the ferrite sleeve onto cable before wiring terminal block.  Ferrite to be placed 50mm (2") up cable and held in place 
with cable ties.

Note:

 The 

FERRITE

 must be fitted!

Note:

1). Consult local AHJ (Authority Having Jurisdiction) when installing access control readers and locking mechanisms to any 
portal in an egress path.
2). The use of Fail Closed / secure configuration shall be determined by local building codes and the local AHJ.
3). Wiring methods shall be in accordance with NEC (National Electrical Code) ANSI/NFPA 70.

225ft (75m) max with Belden 9503 or 

450ft (150m) by doubling power cores 

with Belden 9536.

If termination is required use Lk5 to set

(see over).

Twisted 

pairs

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