Issue Preliminary 1, October 2022
Model 214A User Guide
Page 24
Studio Technologies, Inc.
Model 214A
ANNOUNCER’S CONSOLE
Specifications
Power Sources:
Power-over-Ethernet (PoE):
class 2 (low power,
≤6.49 watts) per IEEE 802.3af
DC Input:
10 to 18 volts DC, 270 mA
maximum at
12 volts DC (can be powered by optional PS-DC-02)
Network Audio Technology:
Type:
Dante audio-over-Ethernet
AES67-2018 Support:
yes, on/off selectable
Dante Domain Manager (DDM) Support:
yes
Bit Depth:
up to 24
Sample Rates:
44.1 or 48 kHz
Pull Up/Down Support:
none
Dante Transmitter (Output) Channels:
3 (Main,
Talkback, Aux)
Dante Receiver (Input) Channels:
4
Dante Audio Flows:
4; 2 transmitter, 2 receiver
Analog to Dante Equivalent:
an analog input signal at a
level of –36 dBu and microphone preamplifier gain con
-
figured for 40 dB will result in a Dante transmitter (output)
level of –20 dBFS
Network Interface:
Type:
100BASE-TX, Fast Ethernet per IEEE
®
802.3u
(10BASE-T and 1000BASE-T (GigE) not supported)
Data Rate:
100 Mb/s (10 Mb/s and 1000 Mb/s Ethernet
not supported)
Microphone Input:
Compatibility:
dynamic or phantom-powered
microphones
Type:
balanced, capacitive coupled
Impedance:
3.7 k ohms, nominal
CMRR:
>76 dB, 20 Hz to 20 kHz, 40 dB microphone pre-
amplifier gain
Gain Range:
19 to 64 dB, adjustable in 3-dB steps
Frequency Response:
20 Hz to 20 kHz, +0/–1 dB,
microphone input to Dante output
Distortion (THD+N):
0.004%, measured at 1 kHz,
–36 dBu mic input, 40 dB microphone preamplifier gain
Dynamic Range:
>109 dB, 40 dB microphone
preamplifier gain, A-weighted
EIN:
–123 dBu, 22 kHz bandwidth, 64 dB microphone
preamplifier gain, 150 ohms source resistance
Phantom Power:
P48 per IEC 61938 P48 standard,
on/off selectable, 45 volts DC nominal
Headphone Output:
Type:
2-channel
Compatibility:
intended for connection to stereo
(dual-channel) or monaural (single-channel) headphones,
headsets, or earpieces with nominal impedance of 50
ohms or greater
Maximum Output Voltage:
3.0 Vrms, 1 kHz, 150 ohm
load
Frequency Response:
20 Hz to 20 kHz, ±1 dB
Distortion (THD+N):
<0.025%, measured at 1 kHz,
0 dBu output
Dynamic Range:
>109 dB, A-weighted
Tone:
Use:
provides support for tone operated (TOX) IFB
function on devices such as Studio Technologies’ Model
5422A Dante Intercom Audio Engine
Type:
sine wave
Frequency:
18 kHz ± 0.1 Hz
Level:
–20 dBFS
Distortion:
<0.01% THD+N
Remote Control Inputs:
2
Functions:
mimics the action of the main and talkback
button functions
Type:
active low, 1 mA maximum, input pulled up to
3.3 volts DC via 3.4 k ohm resistors
Access:
requires user-implemented connector scheme
Relay Contacts:
2
Functions:
configurable, can follow status of the main,
talkback, or main and talkback functions
Type:
form A (normally open, not shorted), solid-state
Rating:
100 mA, 60 volts AC/DC, maximum
Contact Resistance:
16 ohms, maximum
Access:
requires user-implemented connector scheme
Connectors:
Microphone Input:
3-pin female XLR
Headphone Output:
¼-inch 3-conductor jack
Ethernet:
Neutrik NE8FBH etherCON RJ45 receptacle
DC Input:
4-pin male XLR (pin 1 negative, pin 4 positive)
USB:
type A receptacle (used only for updating firmware)
Spare Connector Locations:
2
Allows Studio Technologies’ option modules to be
installed. Also compatible with Neutrik NC*D-L-1
connectors (*=3F, 3M, 5M, 6F, 6FS, etc.).
