News
VCL-30, E1 Network Access Multiplexer
(Application Note)
March 3, 1999
Orion's E1, the VCL-30,
2Mbps Network Access Multiplexer shall connect to the E1 port (using
CAS R2 signaling of the Cisco, Nuera, Lucent ITS-SP server (or any
other server using CAS R2 signaling and provide the analog interface
necessary to connect 30, 2 wire, PSTN lines.
VCL-30 Access Multiplexer,
E1 Network Access Multiplexer is an ideal choice for ISPs, Internet
Telephony (Voice over IP) applications, ISP and Corporate customers,
who wish to connect their fully digital networks to the PSTN through
the available analog dial-up PTT lines.
Application Note:
E1 / CAS, R2
Server
---------------- VCL-30, Channel <----> 30, Analog Telephone PSTN
Bank
Lines For Dial In and Dial Out
FXO / FXS / E&M
The Server site requires 30,
Digital Voice Ports through E1 connection. The availability is 30 Analog
Telephone Lines from PSTN (Exchange).
The VCL E1 WAN Access multiplexer has many notable features, some of
which are being listed below:
1. Programmable Clock Source - Internal, External or Loop Timed.
2. Complete G.821 Analysis for alarms and errors for past 24 hours.
3. Windows based, user friendly user system Management and Control
interface.
4. User Programmable Transmit and Receive Levels on VF interfaces.
5. Independent Time-Slot assignment.
6. Modular construction - Dual (2) VF interfaces per card.
The VCL-30, E1 Network
Access Multiplexer equipment uses CAS (Channel Associated Signaling) R2
Generic Signaling and is especially useful in countries where the cable
plant is not equipped to deliver E1 services to the customers, who are
using the next generation network access equipment which can only connect
to an E1 interface.
Usually, inter-connectivity
problems arise if only 2 wire, analog lines are being provided by the
telephone company to the subscriber premises to connect the next
generation, digital corporate LAN and ISP networks which can only connect,
directly, to an E1 interface. Most of the next generation network access
concentrators (servers), available today, can only connect to the
PSTN through digital E1 interfaces.
The VCL-30 supports V.34, download data transmission rates of 33.6Kbps
and upload transmission rate of 31.2kbps.
- Orion also provides a wide range of telecom
transmission solutions including data communication equipment, Voice over
IP solutions, E1 Channel Banks, E1 WAN Access multiplexer, E2 (4E1)
Opti Multiplexer, E3-PDH multiplexers, 34Mbps Optical Line Transmission equipment (OLTE),
ISDN, digital pair gain systems and Bandwidth Manager equipment.
-
- Technical specifications are subject to change without
notice.
All brand names and trademarks are the property of their respective owners.
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