Studio Technologies IFB Plus 2005 - Manual (Page 38)

Issue 8, December 2005 Model 2 User Guide
Page 38 Studio Technologies, Inc.
Specifications
Model 2 Central Controller
Back Mounting Locations:
Provision made for attaching customer-fabricated
back brackets. Use four (two per side) 8-32 machine
screws to attach brackets to the sides of the Model 2
chassis.
Mains Power Requirements: 120 or 220/240 V,
±10%, internally configured, 50/60 Hz, 20 watts
maximum
Mains Connector Type: 3-conductor IEC-type
Mains Fusing: 1
Type: 5 x 20 mm, fast-acting
Rating: 0.5 A for 120 V mains power, 0.25 A for
220/240 V
IFB Channels: 2
Channel Features: 6-position program select switch,
program level control, status LEDs, 5-segment LED
level meter
Audio Switching: solid state, ramping “clickless”
integrated circuit analog switches
General System Audio Specifications:
(Measurements taken from program input to line
output)
Distortion (THD+N): 0.03%, measured at 1 kHz
Frequency Response: better than ±0.5 dB,
20 Hz-20 kHz
S/N Ratio: 67 dB
Program Inputs: 4
Connector: 3-pin XLR-type, female, pin 2 high
Type: electronically balanced, direct coupled
Input Impedance: 24 k ohms
Input Compatibility: can be connected to balanced
or unbalanced signals
Common Mode Rejection: 90 dB @ DC and 60 Hz,
85 dB @ 20 kHz, 60 dB @ 400 kHz (typical)
Nominal Input Level: +4 dBu
Input Trim Control: allows adjustment of input
sensitivity over a ±8 dB range, nominal
Auxiliary Audio Input:
Application: used with voice operated (VOX)
interrupt
Connector: 3-pin XLR-type, female, pin 2 high
Type: electronically balanced, direct coupled
Input Impedance: 24 k ohms
Common Mode Rejection: 90 dB @ DC and 60 Hz,
85 dB @ 20 kHz, 60 dB @ 400 kHz (typical)
Nominal Input Level: +4 dBu
Input Trim Control: allows adjustment of input
sensitivity over a ±8 dB range, nominal
Talent Amplifier Output:
Application: intended to provide power and audio
signals for any combination of up to four Model 32
or Model 33 Talent Amplifiers
Connector Type: 3-pin XLR-type, male, pin 1
common, pin 2 +22 Vdc modulated with channel 1
audio, pin 3 channel 2 audio
Audio Output Levels: –10 dBu, nominal
Maximum DC Output Current: 180 mA nominal
Line Outputs: 2, one per IFB channel
Type: electronically balanced, capacitor coupled,
intended to drive loads of 600 ohms or greater, can
be connected to balanced or unbalanced loads
Nominal Output Level: +4 dBu
Maximum Output Level Before Clipping: +24 dBu
into 600 ohms, balanced
Output Impedance: 50 ohms
Voice Operated (VOX) Interrupt Function:
Input: auxiliary audio, receive audio telephone
interface 1, or receive audio telephone interface 2,
selectable
Output: IFB channel 1 or IFB channel 2, selectable
Detection Bandpass: bandpass filter with 3 dB
points @ 400 and 1400 Hz
Detection Threshold: 18 dB below nominal input
level over 400-1400 Hz band
Release Threshold: 26 dB below nominal input level
over 400-1400 Hz band
Detect Time for Valid Signal: less than 1 mSec
Release Time after Valid Signal: 350 mSec