User's Manual

eESPA_Link_Type_str
This field specifies the type of physical link between the controlling and the controlled
system.
The only supported value that can be entered in this field is RS232.
An authorized of an entry typically found in this field is as follows: RS232
eESPA_ControlStation_b
This value specifies whether the station is a control (master) station, or a slave. The protocol
used conforms to International Standard ISO 1745 Information processing – Basic mode
control procedures for data communication systems. It is a multidrop protocol utilizing a Control
Station.
Because the physical interface is only RS232, it can only support a point to point interface to
the external espa infrastructure. If more than one system must be integrated, multiple eESPA
modules must be configured on multiple areas.
There is on each RS-232 interface only one system that can act as Control Station.
If the eESPA module for this site and area must act as Control Station (master), the value must
be True or -1, otherwise, the value must be False or 0 (slave).
An authorized of an entry typically found in this field is as follows: False
eESPA_Polling_intv_n
This field specifies the polling interval in milliseconds, and is only relevant if
eESPA_ControlStation_b is set to True (only the Control Station is polling).
An authorized of an entry typically found in this field is as follows: 150
eESPA_Polling_address_list_str
This field is only relevant if the module acts as Control Station (eESPA_ControlStation_b is set
to True).
The Control Station must poll a device or devices on the communication line with the sequence
<address> ENQ.
The characters 0 to 9 can be specified as addresses.
Table: eESPA
226 DECT Messenger Installation and Commissioning — Book 2 March 2012
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