User manual

Matrix Switching System—User Manual
61
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)