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Valiant also offer its E1 over ethernet (TDMoIP), ethernet
over E1 converters, ethernet over DS3, E3 converters and Ethernet over
SDH converters. The 2 x VCL-T1 over
Ethernet can be used to emulate transparent T1channels over an Ethernet link with an
acceptable QoS (Please see the note: QOS, below), so that a majority of the existing T1
based applications can be readily setup over Ethernet LANs and WANs.
(Note: QoS shall depend on the quality of the Ethernet link and
packet losses)
Features
- 2 x T1 port supported (available in 1T1, 2T1, 8T1 and 16T1
versions)
- Supports point-to-point and point-to-multi-point
applications
- 2 x Uplink ports : 1+1 backup supported
- User-friendly Web server supported for easy setup and
maintenance
- Support VLAN settings for T1 service and in band VLAN
management
- Support Ethernet encapsulation and UDP/IP protocol
encapsulation
- Jitter buffer to resist packet delay variation (PDV)
- Stable T1 clock recovery, low jitter and wander
- Low processing delay for T1 channels, high bandwidth usage
efficiency
- Resist to packet loss, with PCM frame synchronization
protection
- User definable encapsulation packet size for different
application
- Enough jitter buffer to resist packet delay variation (PDV)
- Local Ethernet port throughput limiting, assuring T1 QoS
- Local and remote T1 LOS and AIS and packet loss indication
for trouble-shooting and maintenance
- Support cascade concatenate for more than 16 T1 ports
- Fixed Wireless Broadband solution.
Application Diagram
2 x T1 over
Ethernet is used to setup 2 T1 channel over LAN or IP networks
Point to Point 2x VCL-T1 over
Ethernet Application Diagram (figure below)
This configuration guarantees that the T1
channels get higher priority over computer data for maximum QoS.
The most widely used application of 2 x VCL-T1 over Ethernet multiplexer is to set up
point to point wireless T1 links using low cost wireless LAN bridges or Ethernet RPR fiber
links. 2 x VCL-T1 over Ethernet multiplexers can work with most LAN bridges available in
the market. It may be necessary to adjust different parameters such as packet size and
packet jitter absorption buffer size for best operation for different LAN bridges.
Product: VCL TDMoIP-EthMux x 2T1-xx
| User
Interfaces |
Ethernet Uplink Port |
2 x Uplink Ports
Complies to IEEE 802.3
10/100Mbps auto-sensed Full / Half Duplex auto-sensed
Web Manager Supported |
| T1 Port(s) |
2 x T1 Port
Impedance: T1 100 (RJ-45) Ohms or 75 Ohms (BNC) |
| User (Local) Data Port(s) |
Not available in 1 x E1/T1 or 2 x E1/T1
versions. Available in 8E1/T1 and 16E1/T1 versions. |
Technical
Specifications
T1 Interface
| Line Rate |
T1 (1.544 Mbit/s) ± 50 bps) |
| Available Time Slots |
1-24 |
| Framing |
D4, ESF (Pass Through /
Transparent) |
| Electrical |
G.703 |
| Jitter |
G.823 |
| Impedance |
100 ohms |
| Connector |
RJ-45 (F) |
Configuration and Monitoring
Power Supply Options
|
Power Supply options |
Supply |
-48V DC, or Universal 110V-220V AC power
supply options. |
| Consumption |
+<3W |
Environmental
|
Environmental |
Temperature |
0 C to 50 C |
| Relative Humidity |
<90% (non-condensing) |
Mechanical
| Dimension |
W x H x D (mm) |
185 x 35 x 136.5 |
Ordering
Information
| Model Number / Ordering
Code |
Description |
| VCL TDMoIP-EthMux x 2T1-DC |
2 Uplink Port (1+1), 2 T1
interface |
| VCL TDMoIP-EthMux x 2T1-AC |
2 Uplink Port (1+1), 2 T1
interface |
Interoperability table with Wireless Bridges
| Wireless Bridge Company
Logo |
Manufacturer |
Country |
Model number |
 |
Motorola |
USA |
CANOPY™ PTP600, 500, 400,
300, 100 Series (Formerly Canopy 10/20M, 30/60M, 150/300M Backhaul Modules). |
 |
Alvarion |
Israel |
BreezeNET™ Series B100,
DS.11, BreezeAccess Series LB |
 |
Proxim |
USA |
Tsunami™ QuickBridge series,
Tsunami™ MP.11 Series |
 |
Wi-Comm United |
Canada |
Ultima 3 series Libra 5800 series |
 |
Infinet Wireless |
Russia |
RWR 5000 Mini |
Compliance and Regulatory:
EMC FCC Part 15 Class 2
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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