SPECIFICATIONS
APPEARANCE AND DIMENSIONAL DIAGRAM
PERFORMANCE:
Frequency Response
20Hz to 20kHz, ± 1dB
Total Harmonic Distortion
Less than 0.03%
Hum and Noise
At least 90dB below maximum output
Delay
Time
0 to 655 msec
Steps
10
µ
sec & 1 msec scales (summed)
Propagation Delay
A/D Conversion
Memories
100
µ
sec
16-bit at 100kHz Sampling Rate
Four-selectable via front panel buttons or
rear panel dry contact to screw terminals.
One master controls up to 15 slave units.
INPUT & OUTPUT:
Input
Type
Electronically balanced (Transformer optional)
Input Impedance
Rated Input Level
10k ohms
+ 4dB*
Maximum Input Level
+ 18dB*
Outputs (x3)
Type
Recommended Load
Rated Output
Electronically balanced (Transformer optional)
600 ohms or higher
+ 4dB* at 600 ohms
Maximum Output Level
+ 18dB*
CONTROLS & PANEL FUNCTIONS:
(Front Panel)
Input Level Control
Attenuation type
Output Level Controls
x 3; Attenuation type
Level Meter
Type
Headroom Indicator; 0 indicates 3dB
below maximum level
LED Points
Memory Selection
Seven segments (Red at 0 and -3dB;
Green at -6, -9, -12, -16, and -26dB.)
4 pushbuttons with LED status indicators
Fine
Fine/Coarse Display Pushbutton with
LED status indicator
Lock
Memory
Clear
Disables function pushbuttons except
memory selection and Fine
LED status indicator
Memory Store
Displayed Delay Time Clear
Setting
Display
Up/Down Buttons (x 3)
3-digit numeric display (x 3)
Power
On/off pushbutton with LED status indicator
(Rear Panel)
Protect
Input
outputs
On/off slide switch; Disables all front panel
pushbuttons
Screw terminals (H=Hot, C=Cold, E=Ground)
x 3; Screw terminals (H=Hot, C=Cold,
E=Ground)
Ground
Remote Selection
Signal Ground to Chassis Ground
(removable link)
4-presets; Screw terminals; Selection via
dry contacts to E
Master designation by removal of D/E link
Fuse
Power Socket
250V 0.3A Slow-blow Type (120V version)
250V 0.1A Slow-blow Type (220V/240V version)
EIA AC power cable socket
POWER:
Power Requirements
Power Consumption
AC mains, 50/60KHz
15 watts
PHYSICAL:
Dimensions (W x H x D)
ARCHITECTS AND ENGINEERS SPECIFICATIONS
The digital signal delay device shall be capable of delaying an audio input
signal to each of three independently adjustable outputs. The minimum
output time setting shall be 100 microseconds, including propagation
delay, and the time delay at each output shall be adjustable in 10-
microsecond steps up to maximum delay of 655 milliseconds. The unit
shall use 16-bit A-to-D conversion with a 100kHz sampling rate, and shall
have a maximum output-to-noise ratio floor of greater than 90dB. The input
circuitry shall be electronically balanced and shall accept either balanced
or unbalanced sources. The balanced input impedance shall be 10k
ohms. Each output circuit shall be electronically balanced and capable of
driving a load of 600 ohms or greater. The unit shall accept optional input
and output transformers which shall be internally installed via standoffs
and plug-in connectors. A7-segment LED input headroom display shall
indicate 3dB below maximum output for the combination of input and input
level control settings. Frequency response shall be flat (±1dB) from 20Hz
to 20kHz. The digital delay device shall include a digital display that can
be set to indicate the time delay of Outputs 1, 2 and 3. A front panel
Fine control shall allow the user to set the output delay for output 1, 2 or
3 in summed high resolution (1 O-microsecond step) or low resolution
(1 -millisecond step) modes. A Lock mode shall be provided which
disables all front panel pushbuttons except the memory selection and
Fine keys. A back panel Protect switch shall disable all front panel
pushbuttons, leaving only input and output level controls functional. A
security cover shall be provided to protect the front panel controls from
being tampered with. The delay unit shall provide four preset memories for
storage of delay-time settings. The preset memories shall be accessible
via front panel pushbuttons or remotely by means of contact closures
through a rear panel terminal strip. Up to 15 delay units shall be
configurable, with a single master unit to initiate preset selection for all
slave units. The unit shall contain a relay circuit which bypasses all internal
electronics in the event of power failure. lnput and output connections
shall be made via rear panel terminal strip connectors. The unit shall
measure 19.0" wide x 1.7" high x 14.0" deep (483 x 44 x 357mm) with rack
mount ears attached and shall occupy one standard EIA rack space. AC
noise suppression circuitry shall be built in to increase reliability. The unit
shall be a TOA Model D-1103 Digital Signal Delay.
19.0 x 1.7 x 14.0 inches (483x 44 x 357mm)
EIA Rack Mount
Net Weight
OPTIONAL
ACCESSORIES:
9.7 Ibs. (4.4kg)
LT-101 Input Transformer
LT-102 Output Transformer (one per output)
Designed for UL Approval.
*0dB
IS
referenced to 0.775V RMS. unless otherwise stated.