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Start character, Device address – Comtech EF Data KST-2000L User Manual

Page 66

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Satellite Terminal System

Revision 2

Terminal Mode Commands

MN/KST2000L.IOM

The general message structure is as follows:

• Start

Character

• Device

Address

'add'

• Command/Response

• End of Message Character

'cr'

7.2.1

Start Character

A single character precedes all messages transmitted on the remote link. This character
flags the start of a message. This character is:

• “<” for commands

• “>” for responses

7.2.2

Device Address

The device address is the address of the KST-2000L which is designated to receive a
transmitted command or which is responding to a command. Valid device addresses are 1
to 3 characters long and in the range of 0 to 255. Address 0 is reserved as a global
address, which simultaneously addresses all devices on a given communications link.
Devices do not acknowledge global commands.

KST-2000Ls which are connected to a common remote communications link must be
assigned their own unique address. Addresses are software selectable and must be in the
range of 1 to 255.

Notes:

1. 'add' is used to indicate a valid 1 to 3 character device address in the range

between 0 and 255.

2. Global address '*' is reserved for EXTERNAL KEYPAD commands.

7–2