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Product Overview
Orion offer its
Ethernet over 4 E1 converter. The 10Base-T Ethernet interface to
4 E1 interface converter which offers a channelized E1 and
10Base-T interface conversion. This equipment offers electrical
level conversion between 10Base-T Ethernet interface and a G.703
/ E1 (or fractional E1) interfaces.
The VCL-Ethernet
over 4 E1 – 4E1/10(100) Base-T Interface Converter provides the user
with 4 x Ethernet over 4 x E1 conversion enabling the user to
transport Ethernet data over up to 4 E1 links.
The equipment be always
installed and used in pairs, with one terminal being installed at
either end of the network.
The VCL-Ethernet over 4
E1 - 4E1/10(100) Base-T Interface Converter is an Ethernet extension
device utilizing TDM telecom infrastructure (the telecom network of
E1s, or of PDH, SDH and E1/E3/SDH microwave etc. carrying E1s). It
converts the Ethernet data into E1 frame format for transmission
over the existing TDM (E1) links and then re-converts the E1s back
into Ethernet data the far-end terminal, to BRIDGE two Ethernet LANs
over the existing E1-based telecom network. The device can
effectively utilize the redundant bandwidth of telecom operators’
existing TDM network to transport Ethernet data with low investment.
Applications
The equipment may
be used for the following purposes:
- Bridging Ethernet LANs over
existing TDM (E1) telecom network.
- Extending Ethernet networks
utilizing TDM (E1) landline based telecom infrastructure.
- Interconnecting DSLAMs to Central
Routers over PDH/SDH
- Interconnecting IP based GSM base
stations
- Interconnecting WiMAX base
stations
- Using telecom network of E1s / PDH
/ SDH microwave etc. carrying E1s to transport Ethernet data.
In all cases the
equipment be always installed and used in pairs, with one terminal
being installed at either end of the network.
Features
- Provides 4 E1 interfaces
- Provides 4 Ethernet 10/100Mbps
(Electrical) ports for each converter
- The maximum transmission rate of
Ethernet data over E1 links is 32.768Mbit/s
- Optionally provides 3 Ethernet
10/100Mbps (Electrical) ports and 1 Ethernet (Optical) port for
each converter
- E1 supports three working modes of
transmission. Un-Framed/Transparent, Framed, CAS / PCM 30 format
- Supports VCAT (virtual
concatenation) and LCAS (link capacity adjustment scheme)
protocol, and complies with ITU-T G.7042 specifications
- Mapping to E1 complies with
ITU-T G.7043 and G.8040 specifications
- Supports differential delay
of up to 120ms on E1 links
- Complies with IEEE 802.3
specifications
- Support VLAN tagging as per 802.1Q
- Supports 802.1 based QoS feature
- Supports base priority
classification for incoming 802.1Q packets
- Supports IEEE
802.1p standard recommended Class of Service traffic
categorization
- Supports 802.1P priority
classification for ingress packets
- Provides 4 different user
selectable ratios (0:1, 1:2, 1:5 and 1:10) for delivery of high
and low priority packets
- Supports 802.1
p based classification of 802.1Q based VLAN Packets which provides
a mechanism for implementing Quality of Service (QoS)
- User selectable ports for enabling /
disabling the QoS service
- Supports port based priority if the Equipment
fails to classify the 802.1Q packets
- Supports port based Ethernet bandwidth limit
for ingress traffic
- Port based Ethernet limit allows user to
provide different speed for the different customers to utilize
bandwidth according to their requirement.
- Supports differential delay of up to 120ms on
E1 Links
- Complies with IEEE 802.3
specifications
- Supports X.86, LAPS and HDLC
transmission protocols
- Supports 100M full-duplex
mode
- Configurable frame length upto
1916 bytes (MTU size)
- Supports GFP-F encapsulation
complying with ITU-T G.7041
- Provide smooth adjustment of
bandwidth
- Provides Loss of Frame
alarms
- Provides error frame
statistic
- Supports automatic removal
and addition of E1 links
- Available with MAC address
list filtration, learning, and updating functions
- A large external SDRAM
buffering for handling data bursts
- E1 Interfaces support errors
count
- Supports two synchronization clock
modes, Internal clock and Network clock (Loop-Timed clock)
10/100BaseT Interface
(Electrical)
|
Number of Interfaces |
4 |
|
Interface Types |
10/100BaseT |
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Standards
Compliance |
IEEE
802.3 |
|
Transmission Bit Rate |
10/100BaseT limited to 2.048 Mbps |
|
Connectors |
RJ-45
(10/100 BaseT Electrical) |
10/100BaseT Interface
(Optical)
|
Number of Interfaces |
1 |
|
Wavelength |
850nm / 1310nm / 1550nm |
|
Compliance |
ITU-T G.957 |
|
Data Rate |
125Mb/s |
|
Connectors |
SC |
E1 Interface - Technical Specifications
|
Number of E1 Port |
4 E1 |
|
Line Rate |
E1 (2.048Mbps ± 50 bps) |
|
Line Code |
HDB3 |
|
Framing |
Un-Framed /PCM 30 /PCM 31 |
|
Frame Structure |
As per ITU-T (CCITT) G.704 |
|
Clock |
Internal, Loop timed |
|
Electrical |
G.703 |
|
Jitter |
G.823 |
|
Impedance |
120 Ohms / 75 Ohms (Optional) |
|
Connectors |
RJ-45 Female |
Mechanical Specifications
|
Rack Mounting |
Standard 19-inch DIN rack (Ethernet over 4 E1
model) |
|
Height |
266mm (Desk-top or 1U high 19 inch rack
mount) |
Power Supply
|
Input DC Voltage |
-48V DC ( nominal ) / AC also
available |
|
Range of Input |
-40V to -60V DC |
|
Output Voltage |
+5V |
|
Input Voltage Reversal Protection |
Provided in the Card |
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Over Current Protection |
Provided in the Card |
|
Short Circuit Protection |
Provided in the Card (recovers
automatically) |
|
Under Voltage |
< 4.5V |
|
Over Voltage |
5.4V to 5.6V |
|
Efficiency at full load |
>80% Typ. |
|
Ripple at full load |
<5mVrms |
|
Spike at full load |
<50mV |
|
Temperature |
0°C to 55°C |
|
Humidity |
95% RH (non-condensing) |
|
Cooling |
Convection Cooling |
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