Monitor your data lines economically without interrupting data flow. Data Taps provide a simple and inexpensive way to create your own "X" or "Y" cable using various lengths of straight-through cable. They also offer an easy way to monitor data without interrupting data flow or users. Several possible combinations of gender connectors and mating hardware are available. The DB9 Tap features three DB9 connectors for monitoring RS-232, RS-422, 802.5 and other data lines. All 9 pins are wired straight through.