Studio Technologies 2A 2013 - Manual (Page 32)

Issue 1, October 2013 Model 2A User Guide
Page 32 Studio Technologies, Inc.
Monitor Output:
Power: 4 watts RMS into 8 ohms @ 1%
THD+Noise
Application: designed to drive loads of 8 ohms or
greater
Access Station Interface: allows connection of up
to four Model 22 or Model 24 Access Stations
AC Mains Input: 100-240 volts (-15/+10%),
50/60 Hz, 24 watts maximum
Dimensions (Overall):
19.0 inches wide (48.3 cm)
1.72 inches high (4.4 cm)
9.2 inches deep (23.4 cm)
Mounting: one space (1U) in a standard 19-inch
rack
Weight: 4.5 pounds (2.1 kg)
Model 22 Access Station
Application: provides remote 2-channel interrupt
(talk) location based on a Model 2A Central Con-
troller unit; up to four Model 22 units can be con-
nected to a Model 2A Central Controller
Power Requirements: 18 volts DC, 25 milliam-
peres maximum, provided by connected Model 2A
Central Controller
Interconnection:
Two DE-9F (9-pin D-subminiature female) connec-
tors. One connector intended to link Model 22 to
Model 2A Central Controller. The second connector,
wired in parallel with the first, is designed to allow
“loop through” installation for connection to addi-
tional Model 22(s).
Pushbutton Switches: 2
Type: backlit, momentary, EAO 99-series
Lamp Type: incandescent, T-1, bi-pin, 18 V,
26 milliamperes, 0.5 watt equivalent to EAO Switch
Corp. 11-903-2, Wamco 0L1100BPE, Lamptronics
AS25-8
Audio Inputs: electret microphone or line level,
switch selectable
Microphone Input:
Compatibility:
2-wire electret, designed for use
with Studio Technologies’ Model 11A Gooseneck
Microphone (purchased separately)
Intended Input Level: –25 dBu nominal
Microphone Power: +5 volts DC, current limited.
Applied to microphone “high” lead.
Connector: three terminals on a screw terminal
strip
Line Input:
Type: electronically balanced, capacitor coupled,
compatible with balanced or unbalanced audio
signals
Input Impedance: 24 k ohms
Common Mode Rejection: 100 dB at DC and
60 Hz, 70 dB at 20 kHz, 62 dB at 40 kHz (typical)
Input Level: –15 to +10 dBu, input level adjustable
via trim potentiometer
Connector: two terminals on a screw terminal strip
Dimensions (Overall):
6.4 inches wide (16.3 cm)
1.6 inches high (4.1 cm)
5.2 inches deep (13.2 cm)
Mounting:
Rack mounted using Model 25A 19-Inch Rack
Adapter (purchased separately). Panel mounted
using Model 28A Panel Adapter (purchased sepa-
rately). Custom mounting easily accomplished.
Weight: 0.8 pounds (0.4 kg)
Model 24 Access Station
Application: provides remote 4-channel interrupt
(talk) location for IFB system based on two Model
2A Central Controller units, up to four Model 24
units can be connected to the two Model 2A Central
Controllers
Power Requirements: 18 volts DC, 50 milliam-
peres nominal, provided by connected Model 2A
Central Controller
Interconnections:
Two DE-9F (9-pin D-subminiature female)
connectors. Each links the Model 24 with a
Model 2A Central Controller
Interrupt Switches: 5
Functions: IFB 1-4, All Call
Type: momentary pushbutton, EAO 99-series,
all backlit, tally indication for IFB 1-4 functions