This DB9 offers dataline surge suppression for DB9 serial ports of data terminal and data communications equipment, including PCs, printers, modems and more. User-configurable for use with male or female captive DB9 ports. Offers protection on all nine lines, plus D shell chassis. Convenient DB9 input and output connects directly to the protected port, obtaining a ground outlet from the computer chassis. Surge suppression is handled with balanced arrays of high-speed avalanche diodes that divert excess energies created by electrostatic discharges away from network interface connections. Network surge suppressors reduce blown interface cards, garbled transmissions, system lock-ups and hard equipment failure by safely shunting dataline surges to ground.

DB9 protects 9 pin serial connections for dataline surge suppression of data terminal, data communications equipment and PCs, printers, modems and more
Reversible for use with male or female captive DB9 ports
Offers protection on all 9 data lines, plus D shell chassis
Surge suppression utilizing high speed avalanche diodes divert excess energies on the network to ground