For example, in Table 2-4, if you assigned fixture number 2 (F 02) to the Technobeam set to reduced protocol, it would assume that all other fixtures on the link are also using 14 DMX channels, so it will erroneously try to receive channel 15 as the first channel in its channel range. This would create channel overlapping because fixture number 1 (Technobeam iris protocol) is already using channel 15 in its 18- channel range.

In this example, to prevent overlapping channels, you must assign fixture number 3 (F 03) to the Technobeam (reduced protocol), even though it is physically the second fixture on the DMX link. While this would prevent overlapping channels, it would result in wasted channels that could not be used (see Table 2-4).

Table 2-4. Example of Wasted DMX Channels

Fixture

 

Number of DMX

Fixture number:

Resulting

location

 

DMX channel range

Fixture name

channels used

channels

on the

 

per fixture

used (to prevent

wasted

link

 

overlapping)

 

 

 

 

 

 

 

 

 

 

 

 

 

First

Technobeam

18 channels

F 01 : 01-18

 

(iris protocol)

 

 

 

 

 

 

Technobeam

 

 

11 channels

Second

14 channels

F 03 : 29-42

wasted

(reduced protocol)

 

 

 

(19-29)

 

 

 

 

 

Technobeam

 

 

13 channels

Third

18 channels

F 04 : 55-72

wasted

(iris protocol)

 

 

 

(43-54)

 

 

 

 

 

Technobeam

 

 

12 channels

Fourth

14 channels

F 07 : 85-98

wasted

(reduced protocol)

 

 

 

(73-84)

 

 

 

 

Therefore, if you choose to assign fixture numbers to different types of devices (and/or protocols) on the same DMX link, refer to “Fixture Number to DMX Start Channel” on page A-16, which shows the channel ranges reserved for each Technobeam fixture type. This table will help you determine the next available DMX start channel/fixture number for successive Technobeam fixtures on the link.

Upgrading Software

There are three ways you can upgrade the software (fixture-specific operational code) to Technobeam fixtures attached to a DMX link:

Uploading software from Status Cue. You will need to obtain updated software from High End Systems or a dealer/distributor. Consult the Status Cue User Manual for instructions on uploading.

2-18Upgrading Software

Technobeam® User Manual

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High End Systems Technobeam manual 18Upgrading Software