User Manual DEV 1951
Copyright DEV Systemtechnik GmbH 2004-2017 113
5.9.4.3.8 .application.numberOfPorts
OID: .1.3.6.1.4.1.21035.41.2.8.0
Syntax: INTEGER32 (0..255)
Access: read-only
Description: The number of ports within the device.
.numberOfPorts is defined here as the number of (installed and
logical) switch modules multiplied with 3. I.e. "6" is returned
usually since each switch module provides three ports (primary
input port "In A", secondary input port "In B", and the common
output port "Out").
If one (or two) distribution amplifier modules are installed, "7" (or
"8") is returned, please refer to chapter 5.9.4.3.9.
Note:
This value determines the maximum index of the following table:
5.9.4.3.9 .application.portTable
The .portTable describes the special features and settings of each port.
Note:
The .portTable distinguishes between the input ports and the output port of a
switch module; the type of port can be identified via .poType (please refer to
chapter 5.9.4.3.9.3).
The maximum index in the .portTable is at least "6" independent whether one
or two switch modules are installed. If only a single switch module is installed, a
second ("logical" switch module) is added by the firmware.
In the sequence of the table first the input ports are listed (indices "1"…"4"),
and then the output ports (indices "5" and "6").
In terms of the firmware, distribution amplifier modules provide only one
(primary input) port. These distribution amplifier ports are appended in the
sequence of the table behind the last (i.e. sixth) switch module port.
This means:
• If one switch module (indices "1", "2", "5") and one distribution amplifier
module are installed (index "7"), one "logical" switch module is added by
the firmware (indices "3", "4", "6").
• If only one (or two) distribution amplifier module is (are) installed, two
"logical" switch modules are added by the firmware (indices "1"…"6"); and
the index of the distribution amplifier port in the .portTable is "7" (or "8").
"Logical" switch modules that were added by the firmware are treated almost
as installed switch modules, but it is not possible to activate Simultaneous
switching mode (chapter 5.9.4.3.3).
Note that .poCardStatus (chapter 5.9.4.3.9.21) for "logical" switch module ports
is always "2" (notok).
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