Instruction Manual

Kramer Protocol 2000

NOTE 20 – When data (i.e. the INPUT and/or OUTPUT bytes) of more than 7 bits is required, instruction 63 is sent before

sending the instruction needing the additional bits. The data in this instruction then becomes the Most Significant Bits of that

next instruction. For example, to set the audio gain (instruction 22) of output 3 to 681dec (2A9hex), you would first send

HEX codes

3F 80 85 81

and then send HEX codes

16 83 A9 81.

To set the audio gain of output 6 to 10013dec (271Dhex), first send HEX codes

3F 80 CE 81

followed by HEX codes

16 86 9D 81.

NOTE 21 – To store data in the non-volatile memory of the unit, e.g. the EEPROM for saving SETUPS. The EEPROM

address is sent using the INPUT byte, and the data to be stored is sent using the OUTPUT byte. To use this instruction, it is

necessary to understand the memory map, and memory structure of the particular machine.

NOTE 22 – Instruction 59 and instruction 60 load data for sending to the cross point switcher (or for storing in a SETUP), i.e.

the data is “lined-up” to be executed later. Instruction 58 executes the loaded data.

NOTE 23 – If the INPUT byte is set as 127dec, then the data stored in a SETUP is loaded. The SETUP # is in the OUTPUT

byte.

NOTE 24 – Further information needed in instructions 21, 22, 25 and 26, is sent using instruction 42 – which is sent prior to

the instruction. For example, to request the audio gain value of right input # 9, send hex codes

2A 84 80 81

and then send HEX codes

19 89 81 81.

To set MIX mode, send hex codes

2A 81 84 81

and then send HEX codes

NOTE 25 – For units which detect the validity of the video inputs, Instruction 16 will be sent whenever the unit detects a

change in the state of an input (in real-time).

For example, if input 3 is detected as invalid, the unit will send the HEX codes

10 83 84 81

If input 7 is detected as valid, then the unit will send HEX codes

10 87 85 81.

NOTE 26 – After this instruction is sent with OUTPUT defined OFF, the unit will not send reply to the protocol commands.

In order to return to working with REPLY, this instruction must be sent with OUTPUT defined ON. In cases where there is

hardware control of the REPLY, (e.g. a DIP-switch to disable replying), this instruction is only valid when the hardware

REPLY is set ON.

NOTE 27 –Bit 6 in the Output byte defines direction of the switched DATA (RS-232,RS- 485, RS-422). For bit 6=0 the

direction of the control DATA is from Input to Output; for bit 6=1 the direction of the reply DATA is oposite - from Output

to the Input.