The DS26519 T1/E1/J1 long- and short-haul transceiver features 16-ports at what is said to be the lowest cost per port in the industry. The IC operates at 1.8/3.3V, and saves space and cost by eliminating the need for the mechanical relays typically required by redundancy protection. It comes in a HSBGA484 package and is also available in an 8-port version, the DS26518, in a BGA256 package.
The device uses hitless protection switching (HPS) to provide reliable redundancy protection by presenting high impedance at transmit outputs and receive inputs when power is not applied. It has receive- and transmit-side termination for 75 ohm coax, 100 ohm T1 twisted-pair, 110 ohm J1 twisted-pair, or 120 ohm E1 twisted-pair. (From $40.60, DS26518; $69.96 DS26519, ea/5,000—available now.)
Maxim Integrated Products , Sunnyvale , CA
Customer Service 888-629-4642
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