Studio Technologies ISS - Manual (Page 36)

ISS User Guide Issue 3, June 1990
Studio Technologies, Inc. Page 37
ISS
Appendices
Appendix A
Specifications
Mounting
Three spaces in a standard 19-inch (48.3cm) rack
AC Mains Requirements
100 to 125Vac (nominal 115Vac), or 200 to 250Vac
(nominal 230Vac), switch selectable 50/60Hz, 100
watts maximum
Fuse
0.75A, 3AG for 115V operation 0.375A for 230V
operation Slow-Blow Type
Audio Connections
Line Inputs: 3-pin XL-Type, Female
Line Outputs: 3-pin XL-Type, Male Pin 2 Audio High
Remote Control/Status Relay Connections
25-pin D-type, Male
Input/Output Format
Discrete left and right
Input Level
0, +4, or +8dBu, switch selectable
Input Impedance
20k ohms (with no input load resistor installed),
electronically balanced
Output Level
0, +4, or +8dBu, switch selectable
Output Impedance
60 ohms, electronically balanced
Output Level at Clipping (0dBu = 0.7746V)
+22dBu into 150 ohms, Balanced +28dBu into 600
ohms, Balanced Output level current limited for
safety
Frequency Response
(Simulator VCA Bypassed) ±0.1dB, 20Hz to 20kHz
Signal to Noise Ratio (Simulator In Circuit)
76dB
Distortion (THD) (20Hz to 20kHz)
Simulator VCA Bypassed: less than 0.06% Simula-
tor In Circuit: less than 0.40%
Remote Control Inputs
Optically coupled, current limited logic level, switch
selectable for continuous or pulse type. +30Vdc
maximum, 4mA minimum, 20mA maximum
Audio Switching
Electronic Crossfade: VCA based circuit Hard
Bypass via Relay Contacts
Relay Contacts
Isolated, sealed, bifurcated type For noise control
limit current to DC only, maximum 50mA
Recognition Card
Contains circuitry to detect left only as mono, right
only as mono, and mono signal on left and right as
mono. Each condition can be defeated by a switch.
Polarity Correction Card
Contains circuitry to detect and correct 180 degree
phase reversal on input signals. Correction occurs
at signal zero crossing.
Dimensions (Overall)
19.00 inches wide (48.3cm)
5.25 inches high (13.3cm)
13.75 inches deep (34.9cm)
Weight
22.5 pounds
Specifications subject to change without notice.