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. RS-232 tap: Three DB25 connectors enable you to monitor RS-232 data lines. Or connect two terminals in parallel to one RS-232 port. All 25 pins are wired straight through to all three connectors. DB9 tap: 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. DB25 tap: This data junction box features four DB25 connectors with all 25 pins wired straight through.