9.606 SatService-IO-FEP-Protection-2-To-1

The SatService-IO-FEP-Protection-2-To-1 device controls one 2:1 protection switching unit in a SatService IO-FEP. The driver uses SNMP for the communication to the IO-FEP, multiple instances of the device may be configured to access multiple protection switching units in the same device.

The IO-FEP 2:1 redundancy circuit uses two 1:1 redundancy units linked together. Hence up to four 2:1 redundancy units (numbered 1, 3, 5, 7) are available with a basic IO-FEP, the extended IO-FEP version supports up to eight 2:1 redundancy units.

Switch positions are immutably defined by the IO-FEP: "A" means "operative chain in use", "B" means redundant chain switched in place. Based on this definition, the device translates the switch positions as follows:

• A : A --- Location setting "OFF", both operative chains are in use.
• B : A --- Location setting "1", chain 1 is replaced by the redundant chain.
• A : B --- Location setting "2", chain 2 is replaced by the redundant chain.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

• --- This page controls the operational parameters of the device.
• --- The faults page.
• --- The device info page.
• --- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the device talk to the protection switching unit it shall control.

• parameter --- description

• address --- The SNMP address specification for the device. The full address specification consists of the following fields:aaa.bbb.ccc.ddd:pppp read-community write-community

  • aaa.bbb.ccc.ddd --- The IP address of the device in 'dotted quad' notation. This field is mandatory.
  • pppp --- The IP port number where the device accepts SNMP requests. The port number may be omitted, the driver uses the standard port 161 in this case.
  • read-community --- The SNMP read community name. This must match the read community expected by the device.
  • write-community --- The SNMP write community name. This must match the write community expected by the device. The write community name may be omitted, the driver uses the read community name for both, read and write in this case. If both community names are missing, the driver uses 'public' as a default for read and write community.

• switchNo --- selects the protection switch unit within the IO-FEP (one of 1, 3, 5, 7, with an IO-FEP-E also 9, 11, 13 and 15)

Remarks

• Clicking "Reset" at the maintenance page clears a pending "switched" condition and switches the location back to "OFF" (switch positions A/A).
• Changing the location setting also resets a pending "switched" condition.

Variables defined by this device driver