Shure Switch DRS 10 User Manual

Shure Incorporated  
222 Hartrey Avenue  
Evanston IL 60202-3696 U.S.A.  
Model DRS-10 User Guide  
HARDWARE ADAPTER  
SWITCH ASSEMBLY  
BACK PANEL  
10-POSITION SWITCH ASSEMBLY WIRING DIAGRAM  
FIGURE 1  
USING CUSTOM SWITCHES  
The DRS-10 hardware adapter can be used with a custom-  
built switch. Refer to Table 1 for the resistor values needed  
in the switch to access the desired scenes.  
GENERAL  
The Shure DRS-10 is a digital switching system that  
provides remote scene selection when connected to the  
DFR11EQ version 5. The DRS-10 consists of a hardware  
adapter, a 10-position switch assembly, and a mounting kit.  
The DRS-10 provides remote access to all ten scenes that  
can be stored onboard the DFR11EQ. In addition, the  
DRS-10 can be customized for use in a three position switch  
configuration (not included).  
TABLE 1  
SCENE  
RESISTOR VALUE  
97-202 k  
44-60 kΩ  
1
2
3
26-32 kΩ  
4
17-20 kΩ  
IMPORTANT OPERATIONAL INFORMATION  
5
11.3-13.6 kΩ  
7.8-9.3 kΩ  
5.2-6.3 kΩ  
3.3-4.1 kΩ  
1.9-2.5 kΩ  
0.63-1.1 kΩ  
6
The DRS-10 works only with the DFR11EQ version 5.  
The DFR11EQ must be in global scene mode when a switch  
assembly is used (refer to the DFR11EQ User Guide). No  
switch assembly can be used to control scene selection si-  
multaneously with the software. The DFR11EQ should be  
on with the DRS-10 plugged in to execute a scene selection.  
7
8
9
10  
Multiple switches can be used to control a DFR11EQ  
when wired in parallel (contact Shure’s Applications Depart-  
ment for details). When using multiple devices for scene  
control, the most recent scene selected using any device  
overrides any previous selection. However, if the power is  
cycled (turned off, then on) the DFR11EQ may not default  
to the correct scene.  
CUSTOMIZING THE DRS-10 FOR USE IN A  
3-POSITION SWITCH CONFIGURATION  
To connect the hardware adapter to a 3-position switch  
(not supplied):  
1. Determine the distance needed between the mounting  
area and the DFR11EQ unit. Trim cable to size.  
NOTE: Cable not supplied. A four-conductor, un-  
shielded cable, such as a Belden 9744, is recom-  
mended. The total resistance of the cable run must be  
less than 100 ohms.  
CONNECTING THE HARDWARE ADAPTER TO THE  
10-POSITION SWITCH ASSEMBLY  
2. Connect a 3-position switch to the hardware adapter as  
shown in Figure 2. The switch should be wired to pro-  
vide a separate contact between the C (common) termi-  
nal and each of the three numbered terminals.  
To connect the hardware adapter to the supplied switch  
assembly (Figure 1):  
1. Determine the distance needed between the mounting  
area and the DFR11EQ unit. Trim cable to size.  
NOTE: Do not use a switch configuration which allows  
more than one contact-closure at a time.  
NOTE: Cable not supplied. A two-conductor, unshielded  
cable, such as a Belden 8442, is recommended. The total  
resistance of the cable run must be less than 100 ohms.  
2. Connect terminal 1 of the switch assembly to terminal  
C (common) on the hardware adapter using cable.  
3-POSITION SWITCH WIRING DIAGRAM  
3. Connect terminal 2 of the switch assembly to terminal  
S (switch) on the hardware adapter.  
FIGURE 2  
E1999, Shure Incorporated  
Printed in U.S.A.  
27A8705 (SJ)  
 

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