Port Bypass Circuits
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Port Bypass Circuits for Fibre Channel Arbitrated Loop Standard and its Extensions Technical Data
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Description
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Port Bypass Circuits for Fibre Channel Arbitrated Loop Standard and its Extensions Technical Data
Features
Supports ANSI X3T11 1.0625 Gbps FC-AL Loop Configuration Supports 802.3z 1.25 Gbps Gigabit Ethernet (GE) Rates Single PBC, CDR, Dual Signal Detect (SD) in a Single Package Bidirectional, Symmetric Bypass Capability CDR in Bypass Path and Loop Path CDR Location Determined by Wiring Configuration of Pins on PCB (Patent Pending) Envelope Detect on Cable Input (SD) for Both Directions Equalizers On All Inputs High Speed PECL I/Os Referenced to VCC Buffered Line Logic (BLL) Outputs without External Bias Resistors 0.4 W Typical Power at VCC = 3.3 V 5 V Tolerant LVTTL I/O 24 Pin SSOP Package
HDMP-0421 Single PBC & CDR Description
The HDMP-0421 is a Single Port Bypass Circuit (PBC) with Clock and Data Recovery (CDR), and dual Signal Detect (SD) capability. This configuration will control jitter accumulation while repeating incoming signals. Port Bypass Circuits are used to provide loops that are continuously on in hard disk arrays constructed in Fibre Channel Arbitrated Loop (FC-AL) configurations. Hard disks may be pulled out or swapped while other disks in the array are available to the system. This device may also be used in multi-initiator loop configurations. A Port Bypass Circuit is a 2:1 Multiplexer array with two modes of operation: DISK IN LOOP and DISK BYPASSED. In DISK IN LOOP mode, the loop goes into and out of the disk...
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