GE MDS Master Station Technical Manual page 53
Modular communications platform
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Also See for MDS Master Station:
- Installation and operation manual (98 pages) ,
- Setup manual (6 pages) ,
- Installation instructions manual (6 pages)
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FCC Part 90 Repeater Mode – Repeater mode must be set to one of the following
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values:
- None – This is the default value, and is used when the Master Station being con-
figured is not to be used as a repeater in the network.
- Repeater – This value should be selected when the Master Station being config-
ured is to be installed as a repeater in the network, and will not have devices con-
nected to it that will be polled, such as attached RTUs.
- Repeater With Local Data – This is the same as "Repeater" but should be used
when data-collection devices such as serial RTUs will be attached directly to the
repeating Master Station.
Allowed Ethernet Packet Types – When operating in packet-with-mac mode, and
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sending Ethernet traffic, this option will restrict the types of Ethernet frames that will be
sent over the air. Options are:
- None – This will prevent any Ethernet frames from being transmitted over the air.
- All – All Ethernet frames will be sent over the air, regardless of type.
- Unicast Only – Only unicast packets will be sent over the air.
- Unicast and ARP – This is the default value and will only allow unicast frames,
or broadcast ARPs to be transmitted over the air.
Serial Payload Port – The front-panel serial port that will be used for serial payload
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communications. This can be set to COM1, COM2, or disabled if the system will not be
used for transmitting serial data. The default value for this is COM1.
Serial port settings such as baud rate and byte format are located under
Serial
Payload Buffer – The transceiver's buffer provides a way of handling data 'over-runs',
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where more data is passing through the COM port than can be immediately handled by the
unit. When the payload-buffer is on, any such data is stored up and processed in the
appropriate order.
Payload Serial Talk VRC / Payload Serial Talk 2 VRC – Serial data received on the
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primary/secondary serial payload port will be tagged with this VRC and sent over-the-air.
Payload Serial Listen VRC / Payload Serial Listen 2 VRC – Over-the-air payload
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traffic that is tagged with this VRC that the master station receives will be transmitted out
of the primary payload serial port.
Compression – When the Master Station is being used in a network of only SD radios in
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Packet-with-MAC mode and with firmware versions capable of supporting compression,
enabling this option will compress over-the-air traffic resulting in less data being sent over
the radio link. Depending on the type of data being transmitted, this can result in a
significant throughput improvement. All nodes in the network must have compression
enabled for this to function properly.
Encryption – When the Master Station is being used in a network of only SD radios,
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over-the-air (OTA) encryption may be enabled. The Master Station uses AES-128,
passphrase-based encryption to secure both payload, and Dlink traffic. If the radio is
operating in transparent mode, there is a separate passphrase for payload and Dlink traffic.
MDS 05-6399A01, Rev. E
.
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MDS™ Master Station
Services
49
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