Kramer KDS-USB2

Kramer Electronics Ltd.
SwitchableUSB – 3 Supported Messages
28
3.21 Reply Link Status
This message is sent from the device to a client in response to a Request Link Status Information
message. The message will contain information for all 7 devices that could be paired. If the number of
paired devices is less than 7, the unpaired fields are set to 0. Thus, the size of the structure sent
remains the same regardless of the number of paired units.
3.21.1 Field Descriptions
Paired Devices
Number of paired devices
Link Status
The value of this field is set as follows:
Value
Description
0
Device not paired
1
Device paired and linked
2
Device paired but not linked
Reserved
This field is reserved by Icron and is set to 0
Paired With MAC
Address
Each MAC address uses 6 bytes, and will be set to zero if there isn’t a device
paired
Byte Offset
+-----------------------------------------+-----------------------------------------+
0 | Magic Number |
+ +
2 | |
+-----------------------------------------+-----------------------------------------+
4 | Message ID |
+ +
6 | |
+-----------------------------------------+-----------------------------------------+
8 | Protocol Version = 3 | Command = 16 |
+-----------------------------------------+-----------------------------------------+
10 | Link Status of device 1 | Link Status of device 2 |
+-----------------------------------------+-----------------------------------------+
12 | Link Status of device 3 | Link Status of device 4 |
+-----------------------------------------+-----------------------------------------+
14 | Link Status of device 5 | Link Status of device 6 |
+-----------------------------------------+-----------------------------------------+
16 | Link Status of device 7 | Reserved |
+-----------------------------------------+-----------------------------------------+
18 | MAC Address of device 1 |
+ +
20 | |
+ +
22 | |
+-----------------------------------------+-----------------------------------------+
24 | MAC Address of device 2 |
+ +
26 | |
+ +
28 | |
+-----------------------------------------+-----------------------------------------+
30 | MAC Address of device 3 |
+ +
32 | |
+ +
34 | |
+-----------------------------------------+-----------------------------------------+
36 | MAC Address of device 4 |
+ +
38 | |
+ +
40 | |
+-----------------------------------------+-----------------------------------------+