
MorphoAccess® SIGMA Series - Administrator Guide
OSDP Protocol Support
2017_2000025464-v03
This document and the information therein are the property of Morpho. They must not
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435
July 17
Description
MorphoAccess® SIGMA Family terminals can be configured to communicate with external
Control Panel (CP) using OSDP (Open Supervised Device Protocol). OSDP is a communication
protocol that allows Peripheral Devices (PD) such as MorphoAccess® SIGMA Family terminals to
interface with Control Panels (CP) or other security management systems. Security Industry
Association (SIA) has developed this protocol to foster interoperability among security devices.
The Peripheral Devices (PD) respond to the commands received from external Control Panel
(CP). The protocol supports interfacing of one or more Peripheral Devices (PD) to a Control Panel
(CP). The communication between CP and PD is in the form of ‘interrogation/reply’ mode.
Communication can only be initiated by CP through OSDP commands. CP can communicate to
the PD’s in unicast mode or in a broadcast mode, the CP needs to use the address 0x7F for
broadcasting to all PD’s. The PD responds to the OSDP commands via OSDP responses.
NOTE: OSDP is not available on MorphoAccess® SIGMA MAExtreme terminals.
Configurations
In order to enable MorphoAccess® SIGMA Family terminals for OSDP communication (over the
RS485 serial link), the administrator needs to configure the peripheral devices by configuring
the following parameters.
Parameter name
Value
Description
comm_channels_state.serial
0 - 1
(0 - Default)
Parameter to enable/disable communication on
serial port
‘0’ - to disable
‘1’ - to enable
OSDP.channel
0 - 1
(0 - Default)
Parameter to enable/disable communication
over OSDP
‘0’ - to disable
‘1’ - to enable
OSDP.device_serial_address
0 - 127
(127 - Default)
Parameter to configure the terminal device
address