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DM240XR High-Speed Digital Modulator
User Interfaces
MN-DM240XR– Revision 12
4–32
All nodes on a given control bus have a unique address that must be defined.
<DESTINATION ID>
- The Destination Identifier specifies the multidrop address of the
device(s) to which the message is sent.
<FRAME SEQUENCE NUMBER>
- The FSN is a tag with a value from 0 through 255 that is
sent with each message. It assures sequential information framing and correct equipment
acknowledgment and data transfers.
<OPCODE>
- The Operation Code field contains a number that identifies the message type
associated with the data that follows it. Acknowledgment and error codes are returned in this
field. This field is 2 Bytes for the DM240 protocol.
<...DATA...>
- The Data field contains the binary, data bytes associated with the
<OPCODE>. The number of data bytes in this field is indicated by the <BYTE COUNT> value.
<CHECKSUM>
- The checksum is the modulo 256 sum of all preceding message bytes,
excluding the <SYN> character. The checksum determines the presence or absence of errors
within the message. In a message block with the following parameters, the checksum is
computed as shown below in Table 4-4.
IMPORTANT
Содержание Radyne DM240XR
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Страница 23: ...Errata C for MN DM240XR Rev 12 ER DM240XR EC12 Blank Page ...
Страница 34: ...Table of Contents Revision 12 DM240XR High Speed Digital Modulator MN DM240XR viii Notes ...
Страница 46: ...DM240XR High Speed Digital Modulator Installation MN DM240XR Revision 12 2 4 Notes ...
Страница 96: ...DM240XR High Speed Digital Modulator User Interfaces MN DM240XR Revision 12 4 48 Notes ...
Страница 110: ...DM240XR High Speed Digital Modulator Maintenance and Troubleshooting MN DM240XR Revision 12 6 2 Notes ...
Страница 120: ...DM240XR High Speed Digital Modulator Technical Specifications MN DM240XR Revision 12 7 10 Notes ...
Страница 177: ...DM240XR High Speed Digital Modulator Web Browser MN DM240XR Revision 12 10 13 Figure 10 8 Configuring The PC ...
Страница 179: ...DM240XR High Speed Digital Modulator Web Browser MN DM240XR Revision 12 10 15 Figure 10 10 Equalizer Menu ...
Страница 200: ...DM240XR High Speed Digital Modulator TCP IP Ethernet Setup MN DM240XR Revision 12 B 8 Notes ...
Страница 222: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX ...