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211122

Reader-Extender 

OSMIUM

™ 

OSDP-Legacy Controller Interface

OSM-CPI

Product Manual

Cypress Integration Solutions      35+ Years of Access Control Ingenuity    CypressIntegration.com 

© 2020 Cypress Computer Systems     1778 Imlay City Road, Lapeer, MI 48446      800-807-2977 

Configuration

The OSM-CPI can be set to Peripheral 
Device Mode and be configured with 
any standard OSDP configuration tool. 
Additionally, there are configuration 
modes for pairing with a Peripheral 
Device and resetting to Factory Default 
parameters.

Device I/O

The OSM-CPI has inputs for controlling 
the Peripheral Device’s LED and 
buzzer. There is also a tamper output 
on the OSM-CPI in the event of 
communication loss with the Peripheral 
Device.

What is OSDP?

The Open Supervised Device Protocol (OSDP™) is an 
access control communications standard developed by 
the Security Industry Association (SIA) to improve 
interoperability among access control and security 
products. OSDP v2.1.7 is currently in-process to 
become a standard recognized by the IEC international 
standards organization, and OSDP is in constant 
refinement to retain its industry-leading position. 

Why specify or adopt OSDP?

Already in wide use by many leading manufacturers like 
Cypress, HID Global, Mercury and others, the Security 
Industry Association encourages broad adoption of this 
standard and recommends specifying OSDP for any 
access control installations that require real security 
and/or will be used in government and other higher 
security settings. It is particularly valuable for 
government applications because OSDP meets federal 
access control requirements like PKI for FICAM. 

Source: Security Industry Association

https://www.securityindustry.org/industry-standards/
open-supervised-device-protocol

 

The OSM-CPI is an 
OSDP-Wiegand control 
panel interface that 
connects an OSDP 
reader with a Wiegand 
panel.

Summary of Contents for OSM-CPI

Page 1: ...by the Security Industry Association SIA to improve interoperability among access control and security products OSDP v2 1 7 is currently in process to become a standard recognized by the IEC internati...

Page 2: ...atch devices to help future proof system s Functionality 2 way communication access control that withstands the elements multi drop installations 2 wires instead of 10 Communication With OSDP s 2 way...

Page 3: ...and Speci fi cations 2 Parts list Cable recommendations Signals and pinout 3 Physical Dimensions and Mounting Hole Locations 3 Setup and Pre Installation 5 Indicators and Operating Modes 6 7 Troubles...

Page 4: ...ace The signals of the terminal blocks and fl ying leads are named according to the diagram below Cypress OSM CPI Parts Wiring Signals and Pinout Cypress OSM CPI Physical Dimensions and Mounting Hole...

Page 5: ...de lead to ground before power up The OSM CPI will initiate a secure channel session using SCBK_D then issue an osdp_KEYSET command with a new random key From then on during normal operation the OSM C...

Page 6: ...eceives an incorrect reply or a reply is never received the unit will restart the connection sequence from the beginning At this point to initiate a secure channel session with the attached PD the OSM...

Page 7: ...led in the following Keypad Table Cypress OSM CPI Indicators and Operating Modes Meaning Diagnostic LED Behavior Power On Sequence Cycling though various solid colors 0 5 s color ACU Mode unsuccessful...

Page 8: ...t An OSM CPI connected to a compatible peripheral device can both be restored to a factory default state by shorting the purple fl ying lead to ground and shorting the green fl ying lead to the yellow...

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