GIBRALTAR BULLET-RESISTANT READER
125-kHz Proximity
Type: Mullion-mount reader
Read Range: Up to 1.5 inches (38 mm)
Technologies Supported:                                                                                                 
H=  certain HID® 125-kHz Proximity protocols                                                   
A=certain AWID® 125-kHz Proximity protocols                                                 
OSDP= Open Supervised Device Protocol
Part Numbers:                                                                                                            
P-453: Pyramid Series Proximity® Cards and Tags                                                  
P-453-OSDP: Pyramid Series Proximity® Cards and Tags with OSDP*.                  
P-453-H: Pyramid + certain HID® 125-kHz Proximity protocols                             
P-453-H-OSDP: Pyramid + certain HID® 125-kHz Proximity protocols with OSDP*                                                                                                                           P-453-A: Pyramid + certain AWID® 125-kHz Proximity protocols                            
P-453-A-OSDP: Pyramid + certain AWID® 125-kHz Proximity protocols with OSDP*                                                                                                                            P-453-H-A:Pyramid + certain HID® 125-kHz Proximity protocols + certain AWID® 125-kHz Proximity protocols                                                                                       
P-453-H-A-OSDP:  Pyramid + certain HID® 125-kHz Proximity protocols + certain  AWID® 125-kHz Proximity protocols with OSDP*
*The Open Supervised Device Protocol (OSDP) is a global standard approved by the Security Industry Association (SIA) and International Electotechnical Commission (IEC).
OSDP is an access control communications protocol nurtured by a SIA consortium, consisting of some of the smartest individuals from the security industry. Version 2.2 of the SIA OSDP is its most recently updated standard that improves interoperability among access control and security products such as readers and controllers. The standard also applies to peripheral devices such as card readers and other devices at secured access doors/gates and their control panels.