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Remote switching control
The port switching functions of the AdderView CATx
and AdderView CATx IP units can be remotely controlled
by an RS232 link to the serial communication port on
the rear panel, labelled as COM1/Upgrade.
The sending device must use the following RS232
communication settings:
Baud rate: 19200 bps
Data bits: 8
Parity: None
Stop bits: 1
No handshaking is implemented, however, valid command characters will be
echoed back to the sending device.
The value of the byte received via the serial link determines which of the four
user ports should be linked through to the 24 host computer ports. Each
user port can be individually switched to required ports. The table given here
summarises the valid control codes:
REMOTE
CONTROL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0
User 1 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 60 61 62 63 64 65 66 67 71
User 2 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 68 69 6A 6B 6C 6D 6E 6F 72
User 3 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 80 81 82 83 84 85 86 87 73
User 4 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 88 89 8A 8B 8C 8D 8E 8F 74
Host computer port/channel
(video off)
1
2
0
1
9
3
2
24
23
4
POWER C
ONTROL
COM
1 / U
PGRADE
COM2
/ M
ODEM
KM
USER
PORT
1
CA
Tx
USER
PORTS
COMPUTE
Cable from serial
control device
AdderView CATx
rear panel