Specifications - Polycom Vortex EF2241 Brochure & Specs

Polycom Vortex EF2241
System Block Diagram and Rear Panel
Output 1 Output 2 Output 3 Output 4
Line Line Line
Line
+ - + - + -
+ -
D/A D/A D/A D/A
Delay Delay Delay Delay
PEQ PEQ PEQ PEQ
EN EN EN EN
A/D
A/D A/D A/D
Level Level Level Level
adjust adjust adjust adjust
Phantom Phantom Phantom Phantom
Mic/Line Mic/Line + - Mic/Line + - Mic/Line + -
+ -
Mic/Line 2 Mic/Line 3 Mic/Line 4
Mic/Line 1
EN (Echo Canceller, Noise Canceller)
Echo Noise
AGC
Canceller Canceller
On Off On Off
R1, R2, Bus
Dimensions
• 19" (483 mm) W x 9.6" (244 mm) L x 1.75" (45 mm) H
(one rack unit)
Weight
• 4 lbs. (1.8 kg) dry, 5.5 lbs. (2.5 kg) shipping
Connectors
• RS-232: DB9F
• EF Bus In/Out: RJ45
• Control /Status: DB25F
• Telephone Line/Set: RJ11
• Audio: Mini (3.5mm) quick connect terminal blocks
Power
• External supply (provided)
• Input voltage of 110-240 VAC; 47-63 Hz; power
consumption 30 W
Inputs
• Phantom power: 48 V DC, software selectable
• Analog input Gain: 0 to 30 dB Mic/line inputs in 1 dB
steps, software adjustable
• Mic/Line switch gain: 33 dB
• Maximum input amplitude: +19 dBu, 1% THD + N
• Nominal level: 0 dBu (0.775 V rms)
• Equivalent input noise: <-124 dBu, 20 - 20,000 Hz
• Input Impedance: 10 kOhms
• Input EMI Filter: Pi filter on all audio inputs
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Specifications

Output A Output B Output C Output D
Line Line Line Line
+ - + - + - + -
D/A D/A D/A D/A
D/A
Delay Delay Delay Delay
Delay
PEQ PEQ PEQ PEQ PEQ
Matrixing
PEQ PEQ PEQ PEQ
AGC AGC AGC AGC
A/D A/D A/D A/D
Level Level Level Level
adjust adjust adjust adjust
+ - + - + - + -
Input A Input B Input C Input D
Ungated
PEQ Mute Gate Gated
On Off
Parameters Parameters
Outputs
• Output Gain: -100 to 20 dBu in 1 dB steps, software
adjustable
• Maximum output amplitude: +23 dBu, 1% THD + N
• Nominal output level: 0 dBu (0.775 V rms)
• Output impedance: 33 Ohm, each leg to ground
(drives 600 Ohms)
• Output EMI Filter: Pi filter on all audio outputs
Amplifier
• Maximum Output Power: 8 Ohm, >10 W, 20 - 20,000 Hz,
+ 0.2 /- 0.5 dB
• Signal to noise ratio: 8 Ohm, >90 dB "A" weighted,
20 - 20,000 Hz
• Impedance: 4-16 Ohm
Telephone
• Input gain: -100 to +20 dB in 1 dB steps, software
adjustable
• Nominal transmit level: 0 dBu in Vortex yields -15 to
-17 dBm to phone (country code dependent)
• Off hook loop current: 16 mA (minimum) to 120 mA
(maximum)
• Output gain: -100 to +20 dB in 1 dB steps, sofware
adjustable
• Frequency response: 250-3300 Hz
• Dynamic range: >70 dB FS, 250-3300 Hz, "A" weighted
©2004 Polycom, Inc. All rights reserved.
Polycom, the Polycom logo, and Vortex are registered trademarks and SoundStation VTX 1000, VSX, Conference Composer and InstantDesigner are
trademarks of Polycom, Inc. in the U.S. and various countries. All other trademarks are the property of their respective companies. Specifications subject to change without notice.
For Architect's and Engineer's Specifications, please visit Polycom.com, or contact the Installed Voice Business Group at 1.770.641.4400.
4750 Willow Road, Pleasanton, CA 94588 (T) 1.800.POLYCOM (765.9266) for North America only.
For North America, Latin America and Caribbean (T) +1.925.924.6000, (F) +1.925.924.6100
270 Bath Road, Slough, Berkshire SL1 4DX, (T) +44 (0)1753 723000, (F) +44 (0)1753 723010
Polycom Hong Kong Ltd., Rm 1101 MassMutual Tower, 38 Gloucester Road, Wanchai, Hong Kong, (T) +852.2861.3113, (F)+852.2866.8028
Part No. 3726-82241-001 Rev. 10/04
Amplifier
Output
+ -
AMP
Tone
PEQ
Gen.
D/A
LEC
A/D
TLP
TLP (Telephone Line Processing)
Noise Call Prog
PEQ AGC
Canceller Detect
On Off
Parameters Parameters Parameters
System*
• Frequency response: 20-20,000 Hz, + 0.2 /- 0.3 dB
• Idle channel noise: <-100 dB FS "A" weighted, 20
- 20,000 Hz, 0 dB gain
• Dynamic range: >100 dB FS "A" weighted, 20 - 20,000 Hz,
0 dB gain
• Linearity: 0 dB FS to -110 dB FS +/- 1 dB
• THD+N: < -90 dB FS
• Common Mode Rejection Ratio: <-61 dB, 20 - 20,000 Hz,
no weighting
• Cross talk: <-104 dB, 20-20,000 Hz, channel-to-channel
• Latency: Mic/Line inputs to outputs: 13 ms, processing
enabled
• Acoustic Echo Cancellation Span: 270 ms
• Total Cancellation: >65 dB
• Convergence Rate: 40 dB/second
• Noise cancellation: 0-15 dB, software selectable
• Operating Temperature: 0° - 40° C
• Control Inputs: Contact closure
• Status Outputs: 5 V, 20 mA each
• Line Echo cancellation (telephone hybrid)
*Unless noted, all values are valid for all channels at
line level
Phone
Telephone
Line
RS-232
EF Bus
Control/Status
Mute
On Off
- Echo cancellation: 40 dB, total > 60 dB
- Convergence Rate: 30 dB/second
- Cancellation span: 32 ms