
MorphoAccess® SIGMA Series - Administrator Guide
Compatibility with an Access Control System
2017_2000025464-v03
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July 17
Clock & Data protocol
The description provided for Wiegand protocol (see previous section) applies to Clock & Data
protocol as well.
The sending of the message is conditioned to only one configuration key.
Parameter name
Value
Description
wiegand.external_port_outpu
t_type
0 or 1
The administrator can set the external port
output type, by configuring this parameter “1”:
it indicates external port type is clock & data.
RS422/RS485 protocol
The administrator can configure to send the access control result message via RS422/RS485
protocol for MorphoAccess® SIGMA Family terminal. RS422 is not supported by MorphoAccess®
SIGMA Family terminals. The message is sent irrespective of the access control result. It contains
more information than the Wiegand and the Clock & Data frames:
date and time
user Identifier (if available),
result from the local access right (authorized, denied, reason for deny).
The administrator can configure the following parameters. For more details, please refer to the
section below.
Parameter name
Value
Description
remote_msg_conf.send_serial
_state
0 or 1
The administrator can select remote message
sending state over Serial channel, by using this
parameter.
Select parameter value as “0”, to disable
message sending on serial port.
Select parameter value as “1”, to enable
message sending on serial port.