Revision C • 12/05
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6
T
he rack-mount model requires 4 RU of rack space (7"
[133.4mm]). There are no special venting requirements, so
equipment can be placed immediately above or below the
mixer.
The desktop model (shown in the Desktop Model Footprint
drawing, adjacent) requires 16" x 17" of countertop space.
One or more grommet holes can be drilled through the coun-
tertop for cable access behind the console. A removable rear
cable cover hides these cable access holes during use. The desk-
top model can also be fastened to the countertop by using
four screws (user supplied) fastened through bottom holes.
The SMX
d installation kit includes a separate power sup-
ply, a 15-pin D-sub connector and the AMP MOD IV crimp
pins and housings for the audio and logic connectors.
Power Supply
A separate “line lump” power supply (Harris # 50-22) works
with line voltages from 95 to 264 VAC at 50 Hz or 60 Hz. The
detachable IEC cord (supplied with USA-type plug) should
only be plugged into isolated-ground outlets. The keyed DC
output cable plugs into J32 (Power).
Ensure that the supply is mounted so that the DC cable
plugged into the SMX
d is not under any tension.
USER CONNECTIONS
Most back panel user connections (shown on page 7) use
AMP MOD IV connectors, which consist of crimped recep-
tacle contacts locked into keyed plastic housings. These same
connectors are used on RMX
digital and BMXdigital consoles
and VistaMax Hub Cards.
NOTE
: A crimp tool is
not
supplied with SMX
d. Use an
AMP # 169481-1 crimp tool (Harris # 70-126) to crimp the
contacts. Use an AMP # 843477-3 pin removal tool (Harris #
70-129) to remove contacts from the housings. One each of
these tools is supplied with each VistaMax frame, RMX
digital
console and BMX
digital console. Contact Harris Tech Sup-
port (513.459.3503) about obtaining a crimp tool for use dur-
ing installation if one is not available locally.
Analog Audio Inputs & Outputs
The 6-pin AMP MOD IV analog audio connectors are pinned
the same as those used on RMX
digital andBMXdigital con-
soles. The left channel of a stereo pair connects to pins 1, 2
and 3. The right channel of a stereo pair connects to pins 4, 5
and 6. When a mono signal is connected to a stereo connector,
the two sets of signal pins must be jumpered together (- signal
to both 2 and 5, + signal to both 3 and 6). Only one shield
connection, to either pin 1 or 4, is required for mono signals.
Most analog connectors carry stereo signals, but two: J6
(Mic/Mono In and Ext. Talk In) and J9 (Mix-Minus and Talk
outputs) have two non-related mono signals on the same con-
nector.
Even though analog inputs and outputs are active and bal-
anced, unbalanced devices can connect to SMX
d since there
is an analog gain switch for each input. For balanced signals,
set the switches to the +4 dBu position. For unbalanced de-
vices, set them to the -10 dBv position and then connect the
device using the following illustration.
Installation
Pinouts for Analog Input
and Output Connectors
Right High (+)
Right Low (-)
Shield
Left High (+)
Left Low (-)
Shield
3
2
1
6
5
4
(wire insertion end view)
Connecting an Unbalanced Device
to a MOD IV Analog Input
SMXd
Balanced
Input
From the
Unbalanced
Device
R
L
Shields
3
2
1
6
5
4
6.50
5.63
4x
11.25
0.25 HOLE
4.14
DESKTOP MODEL FOOTPRINT
16"
17"
Cable Access
Cutout area: 2" x 12"
(Located below meter
panel and cable cover)
Countertop
Mounting Screw
Holes (x4 places)
