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VCL-SafeCommTM, 8 E1 Links (24 E1 Ports)
(1+1 Automatic Protection Switch)
Product Description
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The VCL-SafeComm, 8 E1 Links (24 E1
Ports), 1+1 Automatic Protection Switching (APS) Equipment may
be used to protect upto 8 E1 Links (24 E1 Ports), point-to-point
links and provide an alternate communication route to |
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| each E1
Link between any two E1 points.
In the event of the failure of
the primary (Main) E1 communication route, the VCL-SafeComm, 8
E1 Links (1+1 Automatic Protection Switching Equipment)
automatically switches the E1 traffic to a secondary (standby)
E1 route. The VCL-SafeComm, 8 E1, 1+1 Automatic Protection
Switching equipment is available in a 2U high chassis which may
be mounted in any DIN standard,19-Inch rack. |
This product allows the
user to design 1+1 (protected) redundant E1 routes on similar
(fiber-fiber), or complementing (fiber-radio) transmission mediums.
The criterion for switching between
the primary (main) and the secondary (protected/standby) routes is
user programmable.
Criterion for switching between the
primary (main) and the secondary (protected/standby) routes may be
Loss-Of-Signal on E1 links, or AIS (All-Ones AIS alarm) condition.
The criterion for switching time and recovery time between the
primary (main) and the secondary (protected/standby) routes is user
programmable.
Data transported on the E1 Links is
transparent and protocol independent.
Applications
Providing 1+1 alternate paths
between any two Transmission mediums (active+standby). e.g:
- Fiber/Fiber
- Radio/Fiber
- Radio/HDSL
- Fiber/HDSL etc.
Example:
The user may deploy the VCL-SafeComm, 8 E1, 1+1 Automatic
Protection Switching Equipment to provide an alternate communication
route between an optical fiber link and a radio link between any two
points. In the event of the failure of the primary (optical fiber)
link the E1 is automatically switched to the alternate route over
the E1 radio, thus ensuring maximum uptime on all such 1+1 protected
E1 Links.
Once the primary (optical fiber) E1
Link on the optical fiber is restored, the VCL-SafeComm, 8 E1, 1+1
Automatic Protection Switching Equipment automatically restores the
communication to the primary (optical fiber) E1 Link. The switching
and restoration criterion is user programmable.
Applications
Diagrams
Features & Highlights
- High density
protection switching equipment (upto 8 E1 Links i.e. 24 E1 Ports)
- To provide an
independent point-to-point, protected E1 Link between two "E1 USER
PORTS" on similar (example fiber-fiber), or dissimilar
(fiber-radio) mediums
- To provide 1+1 E1
redundancy support to higher order multiplexers e.g. E2, E3
- System
configuration and management interface through "CLI" text based
commands
- Transport A-bis
Interface on redundant E1 links
- Provide 1+1
Protection Routing / Path between BSC and BTS
- These ensure that
mission critical voice, data, control and management traffic are
properly supported and maintained even during E1 backhaul facility
outages. When the primary (working) link fails, the E1 traffic is
automatically switched to the standby (secondary) link to ensure
maximum uptime
- Through the
comprehensive remote configuration and alarm management
capabilities of the VCL-SafeComm, 8 E1, 1+1 Automatic Protection
Switching Equipment the product may be used to improve network
reliability and control
- Traffic Protection
- Alternate Facility
Advantages
- Service
Differentiation Agreements
- Increased Network
Reliability Resilience
- Media and Path
Diversity
- Remote Management
- Alarm logging and
monitoring.
Benefits
Customer Relations
Competitive
Service Level
Back-haul Network
Technology Migration
User Programmable 1+1 Protection
Parameters:
- Loss of Signal
- AIS (All Ones Alarm)
Technical Specifications
E1 Interface
|
Number of
Interfaces |
Total 24 E1
interfaces
8 for Main E1 Links.
8 for Primary E1 Links.
8 for Secondary E1 Links. |
| Line
Rate |
E1 –
2.048 Mbps |
| Line
Code |
HDB3 |
| Frame
Structure |
G.704 |
| Bit
Rate |
2048
Kbps ± 50 ppm |
| Jitter
Tolerance |
As per
ITU-T G.823 |
| Output
Jitter |
< 0.05
UI (in the frequency range of 20 Hz to 100 Khz) |
| Pulse
Mask |
As per
ITU (CCITT) Rec. G.703 |
|
Conformity (electrical) |
G.703 |
| Nominal
Impedance |
120
Ohms, balanced |
Clock
Transparent between the two points of
the E1 Links.
Management and
Control
- Serial Management Port (RS232) -
COM Port
- 10/100 BaseT for Remote Management
over a LAN
- 10/100 BaseT Telnet over a TCP-IP
Network
Specification
and Regulation Compliance
Meets CE requirements
Complies with FCC, Part 68 and
Part 15 subpart A specifications
Safety - UL 1459 Issue 2
Command
Language
Command Line Interface (English text
commands)
Alarm Contact
Closures
1 Alarm Relay,
Type - Form "C" relay
Temperature
Operating 00C to 500C
Humidity 5% to 95% non-condensing
Dimensions and
Weight
| Rack
mounting |
Standard 19-Inch. DIN Rack |
| Height
|
44.00
mm. |
| Depth
|
260.00
mm. |
| Width
|
477.00
mm. |
| Weight |
4.00
kg. |
AC Power Supply
Specifications
| Output
voltage of AC Adapter |
100 -
240 Volt AC |
| Range
of input AC voltage |
100 V
to 240 V AC, 50Hz / 60Hz. |
| System
input voltage |
7.5 V
DC to 9.0 V DC, DC input polarity protection. |
| Maximum
full load output current |
2.5 A
at 7.5 V DC/9.0 V DC |
| Input
voltage reversal protection |
Provided in the Card |
|
Efficiency at full load |
>86% |
DC Power Supply
Specifications
| Input
DC voltage |
-48V DC
(nominal) |
| Range
of input voltage |
-40V to
-60V DC |
| System
voltage |
+3.3V |
| Input
voltage reversal protection |
Provided in the Card |
| Short
circuit protection |
Provided |
|
Power Consumption |
< 10W |
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