Instruction manual

Analog Characteristics (9.6 kbps)
Nominal transmit level +2 to -13 dBm, independently adjustable for each channel in
steps of 1 ±0.15dB
Nominal receive level
FXS, E&M
FXO
Independently adjustable for each channel in steps of 1 ±0.15dB
+2 to -13 dBm
+1 to -13 dBm
Frequency response (referred to
1020 Hz)
±0.5 dB, 300-3000 Hz
±1.1 dB, 250-3400 Hz
Signal-to-distortion @ 9.6 kbps
(ITU-T Rec. G.712, G.713,
method 2)
0 to -30 dBm0: better than 33 dB
+3 to -45 dBm0: better than 22 dB
Idle channel noise Better than -70 dBm0
Adaptive Echo Canceler
Integral module echo path length 8 msec
Echo return loss enhancement
(ERLE)
>30 dB
Convergence speed Better than ITU-T Rec. G.165
Dial pulse distortion
±4 msec max
Connector 8 pin RJ-45 connector for each channel
Fax Characteristics
Standards Supports Group 3 fax machines complying with
ITU-Rec. T.4 and T.30
Fax Data Rates/Channel Bandwith 2.4 kbps/4.8 kbps
4.8 kbps/6.4, 7.2 kbps
7.2 kbps/9.6 kbps
9.6 kbps/12.8 kbps
all with auto-fallback
FXS Interface
EIA RS-464, loop start
Nominal impedance
600
Ω
Return loss (300 to 3400 Hz) Better than 20 dB
Feed current
25 mA at 300
Ω loop resistance
Ringer
45Vrms (
±10%), overload protected, 22Hz (±10%),
1 second ON, 3 seconds OFF
FXO Interface
EIA RS-464: loop start
Off-hook
DC impedance
150
Ω at 100 mA feed
330
Ω at 25 mA feed
AC input impedance
600
Ω
Return loss Better than 22 dB
TECHNICAL SPECIFICATIONS
DV-MUX3 Installation and Operation Manual 1-15