The DS3254DK is an easy-to-use evaluation kit for the DS3254 quad DS3/E3/STS-1 LIU. A surfacemounted DS3254 and careful layout of the analog signal traces provide maximum signal integrity to demonstrate the transmit and receive capabilities of the DS3254. On-board Dallas 8051-compatible microcontroller and included software give point-andclick access to configuration and status registers from a personal computer. LEDs on the board indicate interrupt, loss-of-signal, transmit driver monitor, and PRBS sync status for all four ports. The board provides BNC connectors for the line-side transmit and receive differential pairs and a 50-pin connector for framer interface signals. All LEDs and connectors are clearly labeled with silk screening to identify associated signals.
Soldered DS3254 for Best Signal Integrity
BNC Connectors, Transformers, and Termination Passives for All Four LIUs
Careful Layout for Analog Signal Paths
Equipment-Side Connector for External Data Source/Sink or External Remote Loopback
On-Board DS3 and E3 Crystal Oscillators
DS3254 Configured for CPU Bus Operation for Complete Control Over the Device
On-Board Dallas Microcontroller and Included Software Provide Point-and-Click Access to the DS3254 Register Set
LEDs for Interrupt, Loss-of-Signal, Transmit Driver Monitor, and PRBS Sync
Banana Jack Connectors for VDD and GND Support Use of Lab Power Supplies
Separate DS3254 VDD to Enable IDD Measurements
Easy-to-Read Silk Screen Labels Identify the Signals Associated with All Connectors, Jumpers and LEDs
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