IBUC Operation Manual
Terrasat Communications Inc.
Rev. A
4-18
Following are two examples, which use the default settings. If you need to reconfigure
these settings, this describes the sequence of events:
To configure TCP/IP do the following:
CIA=192.168.1.21 // IP Address
CIG=192.168.1.1 // IP Gateway
CIM=24 // Subnet Mask
CIP=23 // Telnet Port
To configure RS485 do the following:
C4A=1 // RS485 Address
C4D=20 // RS485 Delay
C4R=9600 // RS485 Baud rate
If ASCII mode is desired type
C4M=0 // RS485 Mode (Not factory
default)
If Legacy mode is desired type
C4M=1 // RS485 Mode
RS485:
The RS485 interface is intended primarily as an NMS interface accessed by a Network
Management Software program. It is possible to access the RS485 interface with a
host computer using an onboard RS485 card.
Communicating with the IBUC across RS485 can be through ASCII or a proprietary
binary protocol referred to as Legacy.
ASCII mode:
The default configuration is Legacy Binary mode so it will be necessary to reconfigure
the IBUC in order to use ASCII mode. ASCII mode can be selected via the web page in
TCP/IP or using the HHT or RS232 to configure the 485 address (1), 485 line delay
(20), 485 mode (0) and 485 baud rate (9600).
Communication through a terminal program such as HyperTerminal requires an
onboard RS485 card in the host computer. In HyperTerminal type the password
command: <0001/CPE=1234 followed by the enter key. Once the < prompt comes back
the IBUC is ready to accept commands. In the above example <0001/ is the address of
the IBUC followed by the desired command.
If an external box is used to convert RS232 to RS485, then a terminal program will not
function. These boxes are designed to work with the RTS/CTS lines manually which a
terminal program cannot handle. In these cases, a network management program is
required to handle this handshaking requirement.
Legacy (binary) mode:
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