The HCL Gateway 2M/2w/4w consists of various manageable modems and converters. It is an intelligent new concept where you can mix and match from a selection of interface cards and order a product to match the application, other networking components and the available WAN links. The cards available include 2Mbps, 2/4-wire SHDSL modem, 64Kbps, 2/4-wire IDSL modem, V.35/RS530/X.21 interface, G.703/E1 interface, the co-directional G.703 interface or a Dual V.35 and G.703/E1 interface card.
All HCL Gateway 2M/2w/4w products can be managed either through a Serial port and/or the optional Ethernet port with built-in SNMP & Telnet Agents. The configuration, monitoring and diagnostics can be performed from either the PC connected to the Serial or Ethernet Port or any Standard SNMP management software installed in the network. Besides, simple DIP switches and Loopback switches are provided for easy and fast configuration and diagnostics.
A bank of LEDs provides comprehensive status indication.
The 2Mbps SHDSL modem card operates to a distance of over 6 Km on a 2-wire 0.5 mm copper cable at 2 Mbps and up to 10 Km at lower speeds. It uses TCPAM modulation to automatically negotiate the most optimum speed as per the distance and quality of the cable. They can also operate on a 4-wire circuit to either double the throughput or increase the driving distance. It also supports use of intermediate SHDSL Repeaters to increase the distance. The 64Kbps modem card uses 2B1Q modulation to provide robust connectivity up to 8 Km at 64 Kbps The modem cards can be combined with either of 3 digital interfaces: V.35/RS530/X.21, G.703 or co-directional G.703 cards. The G.703 interface is typically used to connect to the PCM circuit at the Exchange and the V.35 interface is used to connect to the user equipment like Routers, etc. A similar pair would be installed at the remote site, such as the ISP. The 2 modems with G.703 interface would be connected through the PCM channel. If the 2 sites are within the same telephone exchange, then only the V.35 interface modems will be used, eliminating the need for the G.703 modems.
The V.35/RS530/X.21 card and the G.703 card can be combined to create Interface converters for use where the user equipment like Router is in the Exchange or within 1 Km distance.
Performance and Reliability are the hallmarks of all HCL products and these products are no exceptions. They provide high immunity to background noise on DOT lines allowing multiple Data channels on the same physical cable. They have extra protection against power fluctuations by using Switched Mode Power Supply - SMPS and the convenience of a built-in (internal) Dual AC/DC power supply. Multi-stage line protection circuit is used for better protection against telephone line surges using Sidactors, GD Tubes, MOVs, Tranzorbs and Resettable Telecom Fuses. It can thus meet the tough demands of the Indian environment and you are assured of reliability, productivity, quality and value.
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