WOHLER ALM26-24AS
February 10, 2004
World Leader •In-Rack• Audio & Video Monitoring
24 Channel Analog Stereo Audio Alarm System with Professional Level Metering
Features:
Twenty-Four 26 Segment Bargraph LED Level Meters
Tri-Color LEDs Showing Simultaneous VU & PPM
24 Analog Audio Inputs
Phase Error, Signal Loss and Over-Range Audio Alarms, Visual & Acoustic
Adjustable Level Thresholds for Alarm Conditions
Programmable with Supplied Windows™ Compatible Software
Per Channel Pair Logging Contact Closures
on a DB-25 (Connector)
Full Duplex 9600 Baud RS-232 Control & Status
Analog & AES/EBU Versions and
a Variety of Scales Available
Remote Management Panel also Available: RA-24
New from Wohler is the ALM series of
Audio alarm units, which combine
alarms for Audio Loss, Over-Range and
Phase Error, with the LM series of level
meters. Error conditions are indicated
in the tri-color LED bargraph, as well
as with an audible error alarm. Units
have isolated contact closures for
reporting error conditions elsewhere,
and the thresholds and settings for
error conditions may be set by the
user using a PC and RS232 cable with
the supplied software.
Wohler professional level meters with
alarms are available with 26, 53 or
106 segment bargraphs, providing
very high resolution and a wide
(>70dB usable) dynamic range in
increments as small as 1/2 dB across
mid-scale. Versions are available for
Analog & AES/EBU Digital sources,
providing from 2 to 24 channels
simultaneously depending on the
model, and are available as 1U or 2U
in-rack units, or as standalone units.
Our unique tri-color LED design
means we can offer an almost unlimited variety of options such as Phase
Correlation, Peak Hold, Loudness,
Sum & Difference, and alternate
scales & color mappings.
The standard display mode is set as a
single segment PPM “dot” above a
VU bar, each segment’s color is fixed
according to its position on the scale.
Level calibration for analog input versions and scale color transition points
(“color mask”) for digital input versions may be set via dip switches to
select one of four different calibration
levels (for analog input types) or color
mask (for digital input types) via DIP
switch settings.
Built and rigorously tested in the
USA, the ALM Series is backed by a
strong warranty and a “Satisfaction
Guaranteed” return policy.
A larm Systems
Level Metering
Au d io Monitoring
Toll Free (US): 1-888-5-WOHLER Tel: (650) 589-5676 Fax: (650) 589-1355 • 713 Grandview Drive, South San Francisco, California 94080, USA
Video Moni toring
www.wohler.com
sales@wohler.com
WOHLER ALM26-24AS
24 Channel Analog Stereo Audio Alarm System with Professional Level Metering
S P ecifications:
Input Connectors . . . . . . . . . . . . . .Mini Phoenix
Rear Panel:
Audio Source Type . . . . . . . . . . . . . .Analog
Analog Input Sampling Rate . . . . . . .48 kHz
Frequency Response . . . . . . . . . . . .20 Hz to 20 kHz ±0.5 dB
Analog Input Impedance . . . . . . . . .40 kOhms
Error Indication . . . . . . . . . . . . . . .Isolated contact closures per channel pair
Error Indication . . . . . . . . . . . . . . .Front panel acoustic sounder
System Diagram:
Error Indication . . . . . . . . . . . . . . .Front panel indication of specific condition
with flashing red LEDs
Communication . . . . . . . . . . . . . . .Full duplex 9600 baud RS-232
control and status
Setup . . . . . . . . . . . . . . . . . . . . . .User configurable channel enable
and alarm thresholds
Level Meters . . . . . . . . . . . . . . . . .Twenty-four 26 segment high resolution
Standard Scale . . . . . . . . . . . . . . . .-50 to +12 dB
Midscale Resolution . . . . . . . . . . . .2 dB
Standard Display Ballistics . . . . . . . .Simultaneous VU & PPM (dot over bar)
Dimensions (H x W x D) . . . . . . . .1.75” x 19” x 8” (45 x 483 x 203mm)
Weight . . . . . . . . . . . . . . . . . . . . .4.1 lbs. (1.85 kg)
Power Consumption . . . . . . . . . . . .15W (maximum)
Power Supply . . . . . . . . . . . . . . . . .100-250 VAC, 50/60 Hz universal input,
auto switching
Toll Free (US): 1-888-5-WOHLER Tel: (650) 589-5676 Fax: (650) 589-1355
713 Grandview Drive, South San Francisco, California 94080, USA
www.wohler.com • sales@wohler.com