SANTA CLARA, Calif. -- Integrated Device Technology Inc. today introduced a new octal framer chip and line interface units (LIUs) for carrier-class telecommunications switches, which now must handle multiple protocols for a growing range of networking and transmission technologies.
The new products are targeted at T1/E1/J1 transport requirements in Class 5 central office equipment, serving such applications as voice gateways, multi-service access switches, soft switches, add-drop multiplexers (ADM), and digital cross-connects. The octal T1/E1/J1 framer, T1/E1 octal LIU, and a dedicated E1 octal LIU device provide up to eight independent physical layer interfaces that support all connectivity requirements in Class 5 switches, said the Santa Clara company.
"We believe the market for these types of components will grow because there is a new class of equipment for access networks which is 'multi-protocol' in nature," said Mario Montana, director of IDT's telecommunications product division. "These multi-protocol systems support both legacy interfaces--such as TDM time division multiplexed and POTS plain old telephone services--as well as optical links to the core network or metropolitan network.
"This class of equipment needs to be compatible with the public switch network as well as the new packet networks," he added. "The opportunity is for us to find and introduce products that assist customers in realizing these TDM and POTS line cards."
In addition to the three transport products being announced today, IDT is planning to introduce series of wide-area network (WAN) phase-locked loop (PLL) devices for switching applications that require an independent clock for driving high-density TSI (time slot interchange) switches. A series of controllers for High-Level Data Link Control (HDLC) will also be introduced in six months, according to IDT.
The new 82V2108 octal framer is a physical layer device designed for T1 and E1 standards in North America and Europe, as well as J1 in Japan. The framer supports 2-, 4- and 8-megabit-per-second pulse code modulation (PCM), and it has three on-chip High-Level Data Link Control (HDLC) controllers per channel. The framer enables the generation, detection, and loopback of signal patterns used in system and transmission line diagnostics, which simplifies status, control and maintenance functions, said IDT.
The octal T1/E1 LIU, designated 82V2048, and the dedicated E1 LIU, called 82V2058, integrate clock and data recovery functions along with short-haul line drivers and receivers, jitter attenuators, and diagnostic tools on chip.
"We have focused on lowering the cost and power consumption. This solution offers 20% lower power consumption than our nearest competitor," Montana said. The framer and LIU devices can be used separately, but IDT believes customers will benefit from sourcing most if not all key components from a single supplier.
"Overall we are focused on developing a range of complementary products that can enable our customers to build a number of products with TDM access cards and T1 boards without having multiple vendors for the solution," Montana said.
The octal LIU chips are now being sampled with production volumes starting in the second quarter. The octal framer device will be available in sample quantities in the first quarter of 2002 with production volumes starting in the second quarter. In quantities of 10,000 units, the E1 dedicated LIU is priced at $14.79 each, the T1/E1 line interface unit sells for $22.95, and the octal framer costs $35.80 per unit.