Kramer Electronics VS-42H user manual Instruction Codes for Protocol, Switch Video

Kramer Protocol 2000

Table 6: Instruction Codes for Protocol 2000

Note: All values in the table are decimal, unless otherwise stated.

		INSTRUCTION	DEFINITION FOR SPECIFIC INSTRUCTION			NOTE
	#	DESCRIPTION	INPUT		OUTPUT
	1	SWITCH VIDEO	Set equal to video input which is to	Set equal to video output which is		2, 15
			be switched	to be switched
			(0 = disconnect)	(0 = to all the outputs)
	3	STORE VIDEO	Set as SETUP #	0	- to store	2, 3, 15
		STATUS		1	- to delete
	4	RECALL VIDEO	Set as SETUP #	0		2, 3, 15
		STATUS
	30	LOCK FRONT PANEL	0 - Panel unlocked	0		2
			1 - Panel locked
NOTES on the above table:

NOTE 2 - These are bi-directional definitions. That is, if the switcher receives the code, it will perform the instruction; and if the instruction is performed (due to a keystroke operation on the front panel), then these codes are sent. For example, if the

HEX code
01	85	88	83

was sent from the PC, then the switcher (machine 3) will switch input 5 to output 8. If the user switched input 1 to output 7 via the front panel keypad, then the switcher will send HEX codes:

41	81	87	83
to the PC.

When the PC sends one of the commands in this group to the switcher, then, if the instruction is valid, the switcher replies by sending to the PC the same four bytes that it was sent (except for the first byte, where the DESTINATION bit is set high).

NOTE 3 - SETUP # 0 is the present setting. SETUP # 1 and higher are the settings saved in the switcher's memory, (i.e. those used for Store and Recall).

NOTE 15 – When the OVR bit (4th byte) is set, then the “video” commands have universal meaning. For example, instruction 1 (SWITCH VIDEO) will cause all units (including audio, data, etc.) to switch. Similarly, if a machine is in “FOLLOW” mode, it will perform any “video” instruction.

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