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E1 Automatic
Protection (Failover) Switch
Product Overview
orion's 4 Port E1 Protection (Failover) Switch allows the user to
connect upto four E1 lines from the telephone company to
"active", as well as to "standby" E1
terminal(s), such as data server(s), routers
etc. at the customer premises.
In the event of the failure
of the routers / data server(s)
/ equipment connected to the "A / active" ports, the E1
Protection (Fail-Over) Switch shall automatically switch and connect
the E1 line(s) from the telephone company to the routers / data server(s) / equipment connected to "B / standby" ports. This
ensures minimum downtime-that would have otherwise occurred
due to
equipment failure. |
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Features
- Allows the users to connect upto 4 E1 lines from
the Telephone Company to 4 active and 4 standby E1 terminals
- User configurable. May be used for a single E1
link and scaled upto 4 E1 links though user configuration
- Independent, user configurable switching
parameters for each E1 link
- Built-in real-time clock / real-time logging
maintains a history of all events
- Remotely accessible over a TCP-IP networks.
Allows the user to access and carry out maintenance, or and E1
switch the links remotely, if required.
Benefits
- Allows the users to create and maintain
active/standby/duplicate customer premises data networks/data
servers, without requiring to bear the recurring $$$ expense of
leasing additional expensive E1s lines from the telephone company
- Automatically switches the E1
link(s) from the Telephone Company between the "active"
and
"standby" E1 equipment at
the customer premises, according to the customer-defined criterion
- Improves security. Allows the
user to co-locate the "backup"/" standby" equipment in a different
room/building and prevent data loss
- User programmable switching criterion independent
for each E1 link
- Increases the reliability of
the customer data/IT networks without the recurring additional cost
of leasing additional E1
lines from the telephone company. The equipment may be used to
create secondary/backup systems at the customer premises to provide
virtually uninterrupted service.
Applications
- User programmable criterion for switching between
Active and Standby E1 Links at the customers premises:
| Loss Of
E1 Signal (LOS) |
The
Loss of Signal condition in a E1 may occur due to:
- The failure of the E1 Port of the customer
premises equipment.
- Or due to loss of power to
the customer premises equipment.
- Or due to the disconnection of the E1 cable
between the protection Switch and the E1 Port of the customer
premises equipment.
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| Loss Of
Frame (LOF) |
This Alarm indicates unframed all ones being detected in the
incoming pulses on the receiver of E1 Protection Switch |
|
Alarm Indication Signal (AIS) |
This
Alarm indicates that the E1 link error has occurred. |
| CRC ERROR |
This parameter is the number of
CRC-4 errors (Cyclic Redundancy check errors) that occurred during
the test period. The CRC-4 can be monitored either on-in-service
or Out-of-Service E1 spans. Since the expected value of the CRC
pattern can be anticipated, the received data can be compared to
the expected results. Whenever the expected value does not equal
the actual value a CRC error event is counted. |
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Technical Specifications
Network
Interface
| Number of
Interfaces |
4
Telco E1 Links (common link/Telco E1s)
4 Active E1 Links (for Equipment-A)
4 Standby E1 Links (for Equipment-B) |
| Line Rate |
E1 -
2.048 Mbps + 50ppm |
| Line Code |
HDB3 |
| Frame
Structure |
As per
ITU (CCITT) G.704 or un-framed E1 |
| 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) |
| Nominal
Line Impedance |
120 Ohms
Balanced RJ-45 |
|
Nominal Pulse Width |
244 ns |
| Pulse
Mask |
As per
ITU (CCITT) Rec. G.703 |
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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 multiframe
alignment |
As per
clause 5.2 of ITU (CCITT) G.732 |
Management
Ports (COM Port)
Serial Port: 9.6Kbps (Async).
ASCII/VE100/HyperTerminal.
10BaseT Ethernet: Telnet
Temperature
|
Operating |
00C
to 500C |
|
Humidity |
5% to
95% Non-Condensing |
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AC Power
Supply Specifications
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Output voltage of AC Adapter |
100 - 240 Volt AC |
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Range of input AC voltage |
100 V to 240 V AC, 50Hz / 60Hz. |
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System Input voltage |
7.5 V DC to 9.0 V DC, DC input
polarity protection |
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Maximum full load output current |
2.5 A at 7.5 V DC/9.0 V DC |
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Input voltage reversal protection
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Provided in the Card |
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Efficiency at full load |
>86% |
Mechanical
Specifications
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Rack mounting |
Standard 19-Inch. DIN Rack |
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Height |
44.00 mm. |
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Depth |
260.00 mm. |
|
Width |
477.00 mm. |
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Weight |
4.00 kg. |
Command
Language
Command Line Interface (English text commands)
Compliance /
Regulatory
Operation ETS 300 019 Class 3.2
Storage ETS 300 019 Class 1.2
Transportation ETS 300 019 Class 2.3
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NMS (with
Telnet) XPort Specifications
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Network Interface |
RJ-45 Ethernet 10BaseT
or 100BaseT-TX (auto sensing) |
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Compatibility |
Ethernet Version 2.0
IEEE802.3 |
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Protocols Supported |
ARP, UDP/IP, TCP/IP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, Auto IP, SMTP and HTTP |
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LEDs |
10Base-T
and 100Base-TX Activity, full/half duplex |
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Management |
Internal
web server, SNMP (read only), Serial login, Telnet login |
| EMI
Compliance |
- Radiated and conducted emissions - complies
with Class B limits of EN55022:1998.
- Direct and Indirect ESD - complies with
EN55024:1998.
- RF Electromagnetic Field Immunity - complies
with EN55024:1998.
- Electrical Fast Transient/Burst Immunity -
complies with EN55024:1998.
- Power Frequency Magnetic Field Immunity -
complies with EN55024:1998.
- RF Common Mode Conducted Susceptibility -
complies with EN55024:1998.
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Technical specifications are subject to change without
notice.
All brand names and trademarks are the property of their respective owners.
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