Rane SRM 66 User manual

Manual-1
SRM 66
SPLITTER ROUTER MIXER
OPERATORS MANUAL
SRM 66 CONNECTION
Balanced Operation
Connect the ‘+’ to ‘+’, ‘–’ to ‘–’, and shield to shield. Use
only when driving from a true balanced source and driving to
a true balanced destination—either transformer coupled or
active drive.
Unbalanced Operation
To avoid nasty side effects such as hum and noise, this is
to be avoided—but when you must, keep cable lengths as
short as possible. For lengths longer than ten feet, use a
transformer or a Rane BB 44x.
Coming from an unbalanced source into the SRM 66
using two conductors with shield, connect ‘+’ to ‘+’, the
unbalanced source ground to ‘–’, and the cable shield to the
SRM 66 ground.
Going to an unbalanced device using a single conductor
with shield, connect ‘+’ to ‘+’, leave ‘–’ unconnected and
connect the cable shields at both ends to ground.
Combination Operation
For combined balanced and unbalanced operation, use
whichever half of the above instructions apply for each end.
See the “Sound System Interconnection” RaneNote
included with this manual for more information on cabling
and grounding requirements.
QUICK START
Make all connections with the power and amplifiers off. The SRM 66 is fully balanced and equipped with removable
5-wire Euroblock connectors. Inputs and Outputs are arranged on Euroblocks in pairs, i.e. 1&2, 3&4, 5&6.
Be sure the FP LOCK switch is in the out position to enable programming from the front panel.
Apply power so the PWR light and LCD screen glows with the SRM 66 welcome marquee. During initialization, The
startup muting circuit immediately starts counting down from 40 in the Limiter Gain Reduction area of the display. Adjust
the VIEWING ANGLE with a miniature screwdriver if necessary.
With signal applied to the Inputs, watch the MIX INPUT HEADROOM indicators. These verify correct setting of the
Output of the previous device and the rear panel GAIN switches. Adjust so that 4 dB lights during peaks.
Navigating the Edit pages is simple. The top buttons marked << and >> are the left/right Page scroll buttons. These
navigate to the Channel pages 1 through 6, the Assign Channel to Group page, the Assign Remote to Group page, the
Group levels page, and the Memory page.
The bottom buttons marked <and >are the left/right cursor buttons. These select the (underlined) parameter to edit.
Rotating the DATA knob changes the parameter setting.
Let's start by navigating to Channel 1's page. Move the cursor to IN1. With a signal driving Input 1 and a working
amplifier connected to Output 1, adjust the DATA knob to the desired level. Adjust any other Input going to Channel
Output 1. MST controls the Master Output level of Channel 1. LMT sets the Limit Threshold of the Limiter circuit. for
Channel 1.
To Copy settings from Channel 1 to any other Channel, move the cursor to COPY. Press the EXE button. The display
now reads PASTE. Change the page to the one you want these same settings in, and press EXE again. The settings have
now been pasted into the new Channel.
Settings may be Stored and Recalled in the Memory Page. To Store, select the Store field, select a Memory number
with the DATA wheel and press EXE. To Recall, select the Recall field, select a Memory number with the DATA wheel
and press EXE. Look deeper into this manual for remote control of Memories and level adjustments.
CAUTION: Never connect anything except an approved Rane Power supply to the thing that looks like a red tele-
phone jack on the rear of the SRM 66. This is an 18 VAC center tapped power input. Consult the Rane factory for a
replacement or substitution.
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Manual-2
FRONT PANEL DESCRIPTION
1. MIX INPUT HEADROOM meters. These assist setting of the rear panel GAIN switches as well as the output level of the
preceding device. The 16 dB and 4 dB LEDs indicate the remaining headroom for each of the six Inputs. Optimal settings
allow the 4 dB LEDs to flash only during signal peaks.
2. Edit Pages. This 2x40 backlit LCD screen displays the Edit pages for controlling and revealing all the functions of the
SRM 66 (see #5). Refer to the OPERATION section on page Manual-5 for details.
3. VIEWING ANGLE adjust. This recessed adjustment allows optimizing the Edit Page displays contrast from various
vertical viewing angles.
4. DATA wheel. Allows adjustment of a field parameter after it is selected with the Page (see #5) and cursor (see #6) buttons.
Turning the DATA wheel clockwise increases the parameter, and turning it counterclockwise decreases the parameter.
5. Page buttons. The Previous Page << and Next Page >> buttons scroll through all 10 Edit pages. When the EXE button is
held and MAX >> is pressed, a parameter is jumped to its highest value (see #7).
6. Cursor buttons. The Previous < and Next > cursor buttons scroll through each of the adjustable fields on each page. These
buttons select each adjustable parameter along the bottom row by moving the underline left < or right >. When any param-
eter is selected, the DATA wheel can make adjustments to that parameter. When the EXE button is held and MIN > is
pressed, a parameter is jumped to its lowest value (see #7).
7. EXE (Execute) button. Several commands are implemented with this button.
Holding down EXE while pressing MAX >> jumps any selected parameter to its highest value.
Holding down EXE while pressing MIN > jumps any selected parameter to its lowest value or OFF.
Pressing EXE when the COPY, PASTE, RECALL, STORE, and ZERO commands are selected executes that function.
8. Power indicator. In case the backlit Edit display isn't enough assurance, this yellow LED glows anytime adeqate power is
applied to the SRM 66, alerting you to its on condition.
INTERNAL 80 Hz HIGHPASS FILTERS
Each Output of the SRM 66 features an internally switchable 80 Hz highpass filter. These filters roll off low frequen-
cies, valuable in small sound reinforcement systems and for use with constant voltage line transformers. These are shipped
from the factory in the OUT position. If you wish to enable any or all of the filters for each Output, it will be necessary to
remove the unit’s top cover before installation. Locate the switches near the center of the board, as shown below. S2 =
Output 1, S4 = Output 2, S6 = Output 3, S8 = Output 4, S10 = Output 5, and S12 = Output 6.
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Manual-3
REAR PANEL DESCRIPTION
1. POWER input connector. Use only an RS 1, or other remote AC power supply approved by Rane. This unit is supplied
with a remote power supply suitable for connection to this input jack. Consult the factory for replacement or substitution.
This unit’s power input is designed for an AC supply, delivering 18-24 volts, from a center-tapped transformer capable of
supplying at least the 750ma of current demanded by this product. Using any other type of supply may damage the unit and
void the warranty.
2. Chassis ground point. A #6-32 screw is supplied for chassis grounding purposes. Units with external power supplies do not
ground the chassis through the line cord. In case of a grounding problem, try connecting crossover chassis ground to
amplifier chassis ground or directly to the grounding screw on a grounded AC outlet cover by means of a wire secured on
both ends with star washers to guarantee proper contact. See the CHASSIS GROUNDING note below.
3. FP LOCK button. When pressed in, locks out all front panel control except for Group levels and Memory Recall. The
SR 1 remotes are also able to control Group levels with FP LOCK engaged. The user is able to view all Edit pages.
4. MEMORY RECALL PORT (MRP). This Port allows any type of remote switch closures to recall any of the twelve
system Memories. Eight of the Memories recall with simple switch closure to a single pin. A “binary” mode allows access to
more complex Memory recall functions. See Figure 8 on page Manual-6.
5. REMOTE INTERFACE PORT (RIP). This Port supports up to six optional SR 1 “smart” digital Remote controls as seen
in Figure 4 on page Manual-5. Each Remote may be assigned to adjust the Level of any one of the six Groups.
6. OUTPUT GAIN switches. These assist setting the optimal gain structure of the Output stage, depending on what the
following device would like to see (or hear). Balanced signals usually require a +4 dBu setting (button out), and unbalanced
signals usually require the -10 dBv setting (button in).
7. OUTPUTS. These balanced Euroblock connectors may be wired balanced or unbalanced. See RaneNote 110, “Sound
System Interconnection” later in this manual for assistance.
8. INPUT GAIN switches. These assist setting the optimal gain structure of the Input stage, depending on the level from the
previous device. Balanced signals usually require a +4 dBu setting (button out), and unbalanced signals usually require the
-10 dBv setting (button in). Use the MIX INPUT HEADROOM meters as a guide for determining GAIN switch position
(see #1, front panel).
7. INPUTS. These balanced Euroblock connectors may be wired balanced or unbalanced. See RaneNote 110, “Sound System
Interconnection” elsewhere in this manual for assistance.
CHASSIS GROUNDING
If after hooking up your system it exhibits excessive hum or buzzing, there is an incompatibility in the grounding
between units somewhere. Your mission is to discover how your particular system wants to be grounded. Try these things:
1. Try combinations of lifting grounds on units that are supplied with ground lift switches or links.
2. If your equipment is in a rack, verify that all chassis are tied to a good earth ground, either through the line cord
grounding pin or the rack screws to another grounded chassis.
3. Units with outboard power supplies do not ground the chassis through the line cord. Make sure that these units are
grounded either to another chassis which is earth grounded, or directly to the grounding screw on an AC outlet cover.
Please refer to RaneNote 110 “Sound System Interconnection” (elsewhere in this manual) for further information.
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Manual-4
OPERATION
The User Interface
All programming of the SRM 66 is done with the Data
wheel and the buttons on the front panel using one of the ten
programming pages. Each page consists of the page name,
multiple parameter fields and possible Command fields and
status indicators.
To navigate between pages use the Next Page (>>) and
Previous Page (<<) buttons. Within a page the Next (>) and
Previous (<) buttons move the cursor to each field.
Above each parameter field is a label indicating its
function. Once the cursor is positioned beneath the desired
parameter field the Data wheel is turned clockwise to increase
the value and counter-clockwise to decrease it. For a quick
jump to extreme values you can hold down the Shift (EXE)
Button and press either the MAX (>>) or MIN (<<) buttons.
Command Fields
Most pages contain a Command Field. Here you can Copy
settings from the current page to the clipboard, Paste settings
from the clipboard, Recall page settings from memory, and
Zero all page settings.
To access a command, position the cursor under the
Command Field, use the Data wheel to select the desired
command (not all commands are available in all pages) and
press the EXE button.
Clipboard
There are actually three separate clipboards in the
SRM 66: one for an Output’s settings (shared by all Outputs),
one for the Remote to Group settings, and one for the Output
to Group settings. Using the clipboard can greatly simplify
setting up multiple Outputs or multiple Memories. The
clipboard settings are lost whenever power is removed.
Status Indicators
Next to the page name in many pages is a Status Indicator.
In the Output pages it shows the current amount of Limiter
gain reduction or startup muting. If there is no gain reduction
being applied the field is blank. On the Memory page an
asterisk (*) appears in this field whenever the current working
Memory does not match the last recalled Memory.
Programming the SRM 66
Programming of each SRM 66 Output requires use of only
one edit page as shown in Figure 2. Note that unique Input
mix levels are possible for each Output.
The following parameters define each Output:
IN1 Input one mix Level +6 dB to -25 dB, Off
IN2 Input two mix Level +6 dB to -25 dB, Off
IN3 Input three mix Level +6 dB to -25 dB, Off
IN4 Input four mix Level +6 dB to -25 dB, Off
IN5 Input five mix Level +6 dB to -25 dB, Off
IN6 Input six mix Level +6 dB to -25 dB, Off
MST Master mix Level +0 dB to -60 dB, Off
LIM Limit Threshold Max. to -28 dB
Groups
The SRM 66 uses Groups to link attenuation levels and
Limiter gain reduction of one or more Outputs. Understand-
ing and utilizing the power of them is essential to harness the
power and versatility of the unit.
The Group level parameter is independent of mix Input
level and the Output’s Master level. Group levels are not
affected by Memory changes. The Group levels Edit page is
shown in Figure 2 below.
Outputs are assigned to 1 of 6 (or no/Off) Groups as
shown in Figure 3. For example, a stereo pair would typically
be assigned to the same Group. This ensures that they limit
together and are controlled by a common SR 1 Remote level
control.
Output
Page,
where [x]
indicates
the Output
currently
being
edited.
Limiter gain reduction is
indicated in [y]dB when
the Limiter is active.
Out[x]:[y] IN1 IN2 IN3 IN4 IN5 IN6 MST LIM
Copy +6 -3 +6 0 +6 -25 0 Max
Sets the Input Level of Inputs 1-6
mixed at the Output. Range is +6
dB to -25 dB and Off.
Copy parameters of current page to clipboard.
Paste contents of clipboard to current page.
Recall[n] loads current page parameters from
Memory[n], where [n]=Memory 1-12.
Sets the Master
Level for Output[x].
Range is 0 dB to
-59 dB and Off.
Sets the
Limiter
Threshold
for Output
[x]. Range
is Max to
-28 dB.
Figure 1. Output Edit Page
Group attenuation levels
page. This has the same
action as controlling from
optional SR 1 Remote(s).
Group Lvls G1 G2 G3 G4 G5 G6
Zero All -20 -10 0 Off 0 -6
Groups G1 through G6 may be
attenuated 0 dB to -29 dB or set to Off.
When Zero All is selected, pressing EXE
sets all Group attenutation levels to 0 dB.
Figure 2. Group Levels Edit Page
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Manual-5
SR 1 Remote Controls
The SRM 66 provides a Remote Interface Port (RIP)
which supports up to six optional SR 1 “smart” digital
Remote controls as seen in Figure 4. The SR 1 has 31 LEDs
to indicate the Group’s current setting of 0 to 29 dB of
attenuation or OFF. It is designed to mount in a standard U.S.
electrical box with a minimum depth of 2 ¼ inches, and can
be covered with a standard Decora™ plate cover.
Each Remote must have a unique address (1-6). Each
Remote may be assigned to any one of the six possible
Groups. Note the Remotes control the Level of a Group, not
the Level of an Output. The SRM 66 can assign multiple
Remotes to a singe Group. If the Group’s value is altered via
the SRM 66’s front panel, a Memory change, or any other
SR 1, every Remote mapped to that Group is updated to
reflect the new setting. Remotes are assigned to Groups as
shown in Figure 5.
Each of the 12 Memories stored in the SRM 66 may have
unique Group assignments for Outputs and SR 1 Remotes.
This allows flexible room combining and system
reconfiguration. All Remote devices assigned to a Group
display the level of the Group.
SR 1 Wiring
The Remote interface is a powered, half duplex, party line
system. Five wires are required to connect a SR 1 into the
SRM 66’s RIP (Remote Interface Port [see Figure 7, next
page]). Each connection must be wired. Up to six SR 1s can
be wired in any combination of series or star configurations
for a total line length of up to 1000 feet (305 meters), assum-
ing the use of high quality shielded dual twisted pair cables.
Engage the RT(termination switch) only on the SR 1 farthest
away from the SRM 66. Hook the Shield connection to the
cable’s shield for best emission suppression. The loop at the
back of the SR 1 circuit board is provided for a cable tie-
wrap.
Double-check all wiring for accuracy before power is
applied to the SRM 66. A single LED should light immedi-
ately on the SR 1 after power is applied. A blinking LED on
an SR 1 indicates that it has not detected any communication
on the Port. This is common until the SRM 66 has fully
initialized but should not happen beyond that point. If a LED
does blink continuously the wiring is probably incorrect.
The Remote Interface Ports of multiple SRM 66s can not
be connected together, therefore a single SR 1 can not control
multiple SRM 66s.
Output to Group
Page, where Outputs
are assigned to 1 of 6
Groups.
Out->Grp Out1 Out2 Out3 Out4 Out5 Out6
Copy G1 Off G6 G4 G3 G2
Channels Out1 through Out6 may be
assigned to 1 of 6 Groups or set to Off.
Figure 3. Output to Group Edit Page
Remote to Group
Page, where Remotes
are assigned to 1 of 6
Groups.
Rmt->Grp R1 R2 R3 R4 R5 R6
Copy G1 Off G6 G4 G3 G2
Remotes R1 through R6 may be
assigned to 1 of 6 Groups or set to Off.
Copy parameters of current page to clipboard.
Paste contents of clipboard to current page.
Recall[n] loads current page parameters from
Memory[n], where [n]=Memory 1through 12.
Mem[n]* Store Recall
Memory [n] [Stored]! [ n] [ n]
*
RIP
[SR1]
Memory location
to Recall. Select
Memory with
DATA wheel and
press EXE to
Recall.
Selects mode for the
Remote Interface Port.
Select SR1 when used
with SR 1 Remote
devices. DSC mode
provides a future
communication system.
Memory location to Store.
Select Memory with DATA
wheel and press EXE to Store.
After Execution, this confirms
that Memory [n] has been
Stored or Recalled.
Memory page. The
indicates current
parameter settings do not
match the recalled
Memory; [n] indicates the
last recalled Memory.
Figure 4. SR 1 Remote Control Figure 6. Memory Page
Figure 5. Remote to Group Assign Page
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Manual-6
Memories
Twelve non-volatile Memories can save up to twelve
system configurations. Each Memory contains the following
parameters.
Mix Source Routing Input 1-2-3-4-5-6 to each Output
Mix Source Levels +6 dB to -25 dB for each Output
Master Level +0 dB to -60 dB for each Output
Limit Threshold Max. to -28 dB for each Output)
Output to Group Assignments
Remote to Group Assignments
Memories are stored and recalled using the Memory page
shown in Figure 6 on the previous page.
Memory Recall Port
In addition to the Memory page, the SRM 66 provides a
Memory Recall Port (MRP). This Port allows remote switch
closures to recall any of the twelve system Memories.
Eight of the Memories recall with simple switch closure to
a single pin (see the Normal section of Table 1 to the right). A
“Binary” mode allows access to more complex Memory recall
functions. “Paging” mode provides installers an easy way to
configure a system which uses a single switch (such as a mic
key switch) to toggle between two sequential Memories to
change source levels. See Figure 8 and Table 1.
FP LOCK
The FP LOCK function locks out all front panel control
except for Group levels and Memory Recall. With FP LOCK
engaged, the SR 1 Remotes are able to control Group Levels,
and all Edit Pages are viewable.
Figure 7. Memory Recall Port (MRP)
and Remote Interface Port (RIP)
Figure 8. MRP Wiring
1 2 3 4 5 6 7 8 edoM tluseR
10000000 1
01000000 2
00100000 3
00010000 4
00001000 5
00000100 6
00000010 7
000000018
00000111 1
1 0 0 0 0 1 1 1 2
0 1 0 0 0 1 1 1 3
11000111 4
0 0 1 0 0 1 1 1 5
1 0 1 0 0 1 1 1 6
0 0 0 1 0 1 1 1 7
1 0 0 1 0 1 1 1 8
00001111 9
1 0 0 0 1 1 1 1 01
00 0 0 1 1 0 1 1
100 0 1 1 0 1 2
01 0 0 1 1 0 1 3
1100 1 1 0 1 4
00 1 0 1 1 0 1 5
10 1 0 1 1 0 1 6
01 1 0 1 1 0 1 7
1110 1 1 0 1 8
00 0 1 1 1 0 1 9
100 1 1 1 0 1 01
01 0 1 1 1 0 1 11
1 1 0 1 1 1 0 1 21
Table 1. MRP Binary Control
87654321C
Mic
Switch
Memory
Switch
Paging
Mode
PagingBinary Normal
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Manual-7
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL [phone] FAX [phone] WEB http://www.rane.com
Figure 9. Manufacturing Facility System
Output 1 Output 2 Output 3 Output 4
Remote 1 Remote 2
Control
Group 1
Output 1 Output 2 Output 3 Output 4
Remote 1 Remote 2
Control
Group 1
Control
Group 2
Conference Room
Memory 1
Conference Room
Memory 2
Figure 10. Room Combining System
APPLICATIONS
One of the best ways to grasp the true
versatility of the SRM 66 is to observe
one in action.
Figure 9 shows an installation using
one SRM 66 to distribute sound through-
out an entire manufacturing facility. Each
Output can have different mix Inputs and
levels. For example, the offices may mix
in a different page source than the shop
floor. Also note that all three of the shop
floor Outputs may have different mixes,
Master levels and Limiter thresholds.
The use of Groups allows for a large
variety of Remote / Output combinations.
In this example both the offices and
lobby have their own Remotes to control
their own Output levels, while the shop
floor has two Remotes, either of which
can control the level of all three Output
levels connect to them.
The example shown in Figure 10
demonstrates a system using the SRM 66
for room combining. The fact that Group
configurations can be different in each
Memory adds the versatility of linking
multiple Remotes together in one
condition while separating them in
another.
One thing to keep in mind in such a
situation is the Group’s level is not stored
in each Memory. This allows you to
change Memories without it resetting the
Group’s level each time. If a different
Group level is desired you can change
the Group assignments. For example, in
Figure 10 you could assign Output 1,
Output 2 and Remote 1 to Group 3 in
Memory #2. When you changed from
Memory #1 to Memory #2 the Group’s
level would change to the last value set
for that Group.
Offices Lobby
Remote 1
Output 1
Remote 2
Output 2
Shop Floor
Output 3 Output 4 Output 5
Remote 4Remote 3
Control
Group 1
Control
Group 2
Control
Group 3
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