Comtech EF Data CDM-570A - Manual (Page 377)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
CDM-570A/570AL ODU (Transceiver, BUC, LNB) Operation Revision 2
10–3
YOU MAY PROCEED WITH ETHERNET-BASED REMOTE PRODUCT MANAGEMENT
(WEB SERVER OR SNMP) UNDER THE ASSUMPTIONS THAT:
• A compatible ODU is connected to the CDM-570A/570AL.
• The CDM-570A/570AL is operating with the latest version firmware files.
• The CDM-570A/570AL is connected to a user-supplied, Windows-based PC,
and:
o The PC serial port is connected to the CDM-570A/570AL rear panel
‘Remote Control’ port with a user-supplied 9-pin serial cable.
o The PC Ethernet port is connected to the CDM-570A rear panel ‘M&C
100’ 10/100 or ‘Traffic 100’ BaseT Ethernet port with a user-supplied
hub, switch, or direct Ethernet cable connection.
o The user PC is running a terminal emulation program (for operation of
the CDM-570A/570AL Serial Interface) and a compatible Web browser
(for operation of the CDM-570A HTTP Interface).
o The CDM-570A/570AL Ethernet Traffic IP Address has been noted and
the firmware has been identified using either the CDM-570A/570AL
Serial Interface or the CDM-570A HTTP Interface ‘Configuration | LAN’
and ‘Admin | Firmware’ pages, respectively.
10.1.3 CDM-570A/570AL Serial Remote Control – Overview
See Chapter 8. SERIAL-BASED REMOTE PRODUCT MANAGEMENT for an in-depth
explanation of the use of remote commands and queries over the
CDM-570A/570AL Serial Remote Control Interface.
The CDM-570A/570AL Satellite Modem’s serial remote product management interface is an
electrical interface that is either an EIA-485 multi-drop bus (for the control of multiple devices)
or an EIA-232 connection (for the control of a single device). The interface uses ASCII characters
in asynchronous serial form to transmit data between the Controller (e.g., a User PC) and Target
(e.g., the modem and ODU). This data consists of control and status information, transmitted in
packets of variable length in accordance with the structure and protocol explained in detail in
Chapter 8.
The Controller is in charge of the process of monitor and control, and is the only device that is
permitted to initiate, at will, the transmission of data. Targets are only permitted to transmit
when they have been specifically instructed to do so by the Controller.
The exchange of information is transmitted, Controller-to-Target and Target-to-Controller, in
‘packets’. Each packet contains a finite number of bytes consisting of printable ASCII characters,
excluding ASCII code 127 (DELETE).