Zigen HDBaseT Switches - Manual (Page 79)

Matrix Switcher Series—User Manual
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D-2.4 ACK Type D
ACK Byte + LB + INF + OP + IP + Name 1 + Name 2 + Name 3 +.....+ CRC Byte
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
AB ACC 0 0 Device ID (0 - 31)
LB Length for the total data bytes (INFO +.....+ Name n)
INFO Audio Video Extend 0 Total Memory Location (0 - 15)
OP Total Output Port
IP Total Input Port
NB 1 Device Name (ASCII code)
… …
NB n Device Name (ASCII code)
CB CRC
AB & CB: These are the same as the ACK Type A.
LB: LB value is the total length of the data bytes, not include the AB, LB and CB.
The maximum LB value of the ACK Type D is 19.
INFO: Device information
Bit 7: 1 - Support Audio switch tools request. (Request 0x02, 0x04, 0x06 and
0x08)
0 - Not support Audio switch tools request.
Bit 6: 1 - Support Video switch tools request. (Request 0x01, 0x03, 0x05 and
0x07)
0 - Not support Video switch tools request.
Bit 5: 1 - Extended information exists. (Request 0x3F [0x01])
0 - Extended information does not exist.
Bit 4: Reserve, always 0.
Bit 3~0: Total Memory location ranges from 0 to 15.
 Request [Index], if 0x3F [0x01] ⇒ Request = 0x3F and Index = 0x01
OP: The total number of output.
IP: The total number of input.
NB: Device Name (ASCII code). (The maximum length is 16)