RAD Data Vmux-110 Uživatelský manuál Strana 6

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Vmux-110
Voice Trunking Gateway for Remote Sites
USER INTERFACE – T1 DIGITAL VOICE
Nominal Data Rate
1.544 Mbps
Compliance
ANSI T1.403, AT&T TR-62411,
ITU-T Rec. G.703
Framing
SF, ESF
Line Code
AMI
Zero Suppression
B8ZS
Timing
Internal or loopback
Receive Signal Level
With CSU: 0 to -36 dB
Without CSU: 0 to -15 dB
Transmit Signal Level
With CSU: 0, -7.5, -15, or -22.5 dB
Without CSU: ±2.7V (±10%) at 0-655 ft
Jitter Performance
Per AT&T TR-62411
Line Type
4-wire balanced, 100
Connector
RJ-45
USER INTERFACE – FXS ANALOG VOICE
Number of Ports
4 or 8
Analog Parameters
ITU-T standards: G.712, 2-wire for voice
and signaling
Nominal level: 0 dBm
Nominal impedance: 600
Return loss (300 to 3400 Hz): Better than
20 dB
Frequency response (Ref: 1020 Hz):
300 to 3000 Hz: ±0.5 dB
250 to 3400 Hz: ±1.1 dB
Level adjustment, soft selectable:
TX: +5 dBm to -4 dBm
RX: +5 dBm to -10 dBm
Steps: 1 dB (±0.1 dB), nominal
Signal to total distortion, G.712:
0 to -30 dBm0: Better than 33 dB
+3 to -45 dBm0: Better than 22 dB
Idle channel noise: Better than -70 dBm0
(+20 dBrnc)
Signaling
Method: EIA RS-464 Loop-start
On-hook/Off-hook threshold:
On-hook: Higher than 25V between Tip
and Ring
Off-hook: 3V to 24V between Tip and
Ring
Feed Current: 24 mA ±10%
Ringer:
Voltage: 50 VRMS (±10%),
overload-protected
Frequency: 25 Hz (±10%)
Cadence: 1 sec ON/3 sec OFF (default),
user-configurable
Connectors
4-port version: RJ-12 per channel
8-port version: DB-25 connector
convertible to 8 x RJ-12 connectors via
adapter cable (see
Ordering
)
USER INTERFACE – FXO ANALOG VOICE
Number of Ports
4 or 8
Analog Parameters
ITU-T standards: G.712, 2-wire for voice
and signaling
Nominal level: 0 dBm
Nominal impedance: 600
Return loss (300 to 3400 Hz): Better than
20 dB
Frequency response (Ref: 1020 Hz):
300 to 3000 Hz: ±0.5 dB
250 to 3400 Hz: ±1.1 dB
Level adjustment, soft selectable:
TX: +5 dBm to -4 dBm
RX: +2 dBm to -17 dBm
Steps: 1 dB (±0.1 dB), nominal
Signal to total distortion, G.712:
0 to -30 dBm0: Better than 33 dB
+3 to -45 dBm0: Better than 22 dB
Idle channel noise: Better than -70 dBm0
(+20 dBrnc)
Signaling
Method: EIA RS-464 loop start
DC impedance:
Off-hook:
100 at 100 mA feed
230 at 25 mA feed
On-hook: Above 1 M
Ring detector:
Impedance: 20 k @ 20 Hz, 70 VRMS
Detection: >20 VRMS, 17–25 Hz
No detection: <5 VRMS
Dialing: DTMF or pulse
Connectors
4-port version: RJ-12 per channel
8-port version: DB-25 connector
convertible to 8 x RJ-12 connectors via
adapter cable (see
Ordering
)
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