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).
IMPORTANT OPERATIONAL INFORMATION
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.
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.
CONNECTING THE HARDWARE ADAPTER TO THE
10-POSITION SWITCH ASSEMBLY
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: 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.
Connect terminal 2 of the switch assembly to terminal
S (switch) on the hardware adapter.
12
3
S
C
1
2
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.
TABLE 1
SCENE
RESISTOR VALUE
1
97-202 k
Ω
2
44-60
k
Ω
3
26-32 k
Ω
4
17-20 k
Ω
5
11.3-13.6 k
Ω
6
7.8-9.3 k
Ω
7
5.2-6.3 k
Ω
8
3.3-4.1 k
Ω
9
1.9-2.5 k
Ω
10
0.63-1.1 k
Ω
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.
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.
NOTE: Do not use a switch configuration which allows
more than one contact-closure at a time.
12
3
S
C
3-POSITION SWITCH WIRING DIAGRAM
FIGURE 2
Shure Incorporated
222 Hartrey Avenue
Evanston IL 60202-3696 U.S.A.
Model DRS-10 User Guide
27A8705 (SJ)
1999, Shure Incorporated
Printed in U.S.A.
