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PRI
ISDN Q.931 Multiplexer
Technical Specifications
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Orion Telecom Networks Inc. offers
VCL-PRI (Primary Rate Interface) ISDN Multiplexer provides an efficient
and cost-effective platform to convert 30, dial-up, analog voice
circuits to a digital E1, PRI ISDN interface, as per ITU-T Q.931
recommendations. |
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VCL-PRI ISDN (Euro ISDN) Multiplexer may be
used to connect fully digital Corporate LANs and ISP Equipment
and Networks with E1, PRI ISDN interfaces to analog PSTN
circuits, or analog equipment. |
FXS -
Q.931 FXS .pdf -
FXS interface cards - connect to analog telephone sets.
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Digital Interface 2048
Kbps |
| Number of E1
Interfaces |
1 |
|
Conformity (Electrical) |
G.703 |
| Frame
Structure |
As per ITU-T
(CCITT) G.704 |
|
Signaling |
PRI ISDN
(Euro ISDN) signaling as per ITU-T Rec. Q.921, Q.931 |
| PCM Sampling
Rate |
8000 samples
/ sec. |
| Encoding Law |
A law as per
ITU (CCITT) G.823 |
| Bit Rate |
2048 Kbps ±
50 ppm |
| Code |
HDB3 |
| Nominal
Impedance |
120
W
Balanced |
Peak Voltage
of a mark
120 W
Balanced interface |
3.0 V ± 0.3 V |
Peak Voltage
of a space
120 W
Balanced interface |
0 V ± 0.3 V |
| Nominal Pulse
Width |
244 ns |
| Pulse Mask |
As per ITU (CCITT)
Rec. G.703 |
| Output Jitter |
< 0.05 UI (in
the frequency range of 20Hz to 100 KHz |
| Permissible
Attenuation |
6 dB at 1 MHz |
Return Loss
at:
51.2 KHz to 102.4 KHz
102.4 KHz to 2048KHz
2048KHz to 3072 KHz |
>12dB
>18dB
>14dB |
| Jitter
Tolerance |
As per ITU (CCITT)
G.823 |
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Loss and recovery of frame alignment |
As per clause 3 of ITU (CCITT) G.732 |
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Loss and recovery of multi-frame alignment |
As per clause 5.2 of ITU (CCITT) G.732 |
2 Wire, Analog
Interface - FXS Interface
| Number of
Interfaces per card |
2 |
| Interfaces
Type |
FXS |
| Maximum
Number of Channels |
30 |
|
Transmission performance |
Fully
compliant to ITU (CCITT) G.712 specifications |
| Line
Impedance |
600
W |
| Connector |
RJ11 |
| Voice
Channel Frequency |
300Hz -
3400Hz |
| Insertion
Loss |
-2dB
Nominal (User adjustable range -2dB to -7dB |
| Idle
Channel Noise |
£
-65dB |
| Return Loss |
300Hz -
600Hz - ³
12dB
600Hz - 3400Hz - ³
15dB |
|
Longitudinal Balance |
³
46dB between 300Hz to 3400Hz |
| Ring
voltage (FXS) |
³
75 volts RMS into a load of 3 R.E.N. |
| Ring
Frequency |
20 Hz / 25
Hz (User Selectable) |
| Subscriber
Loop Current (FXS) |
³
23 mA into a subscriber loop of 1000 Ohms |
| Dial Tone |
400 Hz
modulated by 25 Hz |
| Dial Tone
Timeout |
12 seconds |
| Dialing |
DTMF |
| Overload
Level |
+3.14dBm ±
0.5dBm |
| Data
Transmission |
Supports
V.34 modems,
33.6Kbps (download data transmission rate) |
| Caller ID |
DTMF
(provides Carrler ID to all DTMF based decoders) |
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Clock Synchronization |
|
Synchronization Sources |
Internal
Clock or timing derived from the E1, HDB3 link (Loop-Timed) |
| External
Clock Input |
As per ITU
(CCITT) Rec. G.703 |
| Impedance
of External Clock Input Port |
120
W
Balanced |
| Default
Option |
Internal
Clock |
|
Power Supply |
| Input DC
voltage |
-48V DC (
nominal ) |
| Range of
input |
-40V to
-60V DC |
| Input
Voltage Reversal Protection |
Provided
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Environmental |
| Cooling |
Natural,
Convection cooling |
| Temperature |
0°C to
50°C, Ambient |
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Ordering Information |
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Core System (Common Equipment) |
Choice of Interface Card |
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Control Card |
FXS (Remote / Subscriber) |
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NMS Card |
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Power Supply Card |
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Connectorized Backplane & 19 inch Shelf |
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Ring Generator |
. |
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Mechanical Specifications |
| Rack Mounting |
Standard 19
inch DIN rack |
| Height |
3U (133.22 mm) |
| Depth |
292 mm |
| Width
|
482 mm |
| Weight |
8.50 Kgs. |
| Power Consumption |
| Power Consumption
24 Watts (Full Load) |
Related
Links
Others Links
Technical specifications are subject to change without
notice.
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