Echnical, Pecifications – Polycom EF2241 User Manual
Page 46
T
ECHNICAL
S
PECIFICATIONS
V
ORTEX
EF2241
Reference Manual
44
Technical Support: 800.932.2774
T
ECHNICAL
S
PECIFICATIONS
M
ECHANICAL
S
PECIFICATIONS
Dimensions
19” (483 mm) W x 9.6” (244 mm) L x 1.75” (45 mm) H (full rack unit)
Weight
4 lb. (1.8 kg) dry
5.5 lb. (2.5 kg) shipping
Connectors
Audio: Mini (3.5mm) quick connect terminal blocks
RS-232: DB9F
EF Bus In/Out: RJ45
Phone In/Out: RJ11
Control/Status: DB25F
E
LECTRICAL
S
PECIFICATIONS
Power
110 - 240 VAC; 47-63 Hz
Power Consumption
30 W
Phantom Power
24 V, software selectable
A
UDIO
I/O
Microphone Input Level
-30 dBu to 0 dBu/-66 dBu to -33 dBu, nominal; software selectable
Line Input Level
-20 dBu to 0 dBu, nominal; software selectable
Line Output Level
-20 dBu to 0 dBu, nominal; software selectable
Input Impedance
>10 kOhms
Output Impedance
50 Ohms (drives 600 Ohms)
Headroom
20 dB, nominal
Loudspeaker Output, Power
Amplifier
10 W, 4-16 Ohms
P
ERFORMANCE
S
PECIFICATIONS
Frequency Response
20 Hz to 22 kHz
Acoustic Echo Cancellation Span
270 ms
Total Cancellation of AEC
> 65 dB
Convergence Rate of AEC
40 dB/second
Line Echo Cancellation Span
32 ms
Total Cancellation of LEC
> 65 dB
Convergence Rate of LEC
40 dB/second
Noise Cancellation
0 dB to 15 dB, software selectable
Control Inputs
Contact closure
Status Outputs
5V, 20 mA each