Surge Suppressor -- 309010
from Electro Standards Laboratories

Model 303 protects your computer's data interface from destructive transient voltages caused by lightning, brownouts and rolling brownouts!. Sure-Guard Surge Suppressors are designed to limit transient voltages that damage hardware and disrupt data transmission between computers at the DB25 Serial... [See More]

  • Connection: DB Type Connector (DB 9, DB 25 etc.)
  • Mounting: Plug-in
Communication Protection -- CRITEC® DEP Series - Data Equipment Protector
from ERICO

Designed to protect equipment connected to serial protocol systems from the damaging effects of induced surges and transients. The DEP protectors are packaged in male-to-female DB9 and DB25 cases for simple installation at the serial ports of terminal equipment. Features. Premium 1500 Watt ( >100... [See More]

  • Connection: DB Type Connector (DB 9, DB 25 etc.)
  • Maximum AC Power: 1500
  • Signal Protection: Dataline & DC Signal
Data Line Surge Protector -- DLP-3.15-18V
from MCG SURGE PROTECTION

MCG's rack-mount surge protectors (512H, 516H, etc.) are already internally con-. nected to the rack's metal framework. An additional ground wire is provided. for connection to the frame rack to insure continued excellent protection. [See More]

  • Connection: DB Type Connector (DB 9, DB 25 etc.)
  • Mounting: Wall/Panel; In-line or Integrally Attached
  • Signal Protection: Dataline & DC Signal
802.5 Token-Ring Surge Protectors -- Model 535, 536, & 537
from Patton Electronics Co.

The Patton EPG Token Ring surge protectors guard 802.5 networks against data loss and hardware damage caused by data line transients. Working in conjunction with AC surge protectors, these devices intercept harmful data line transients and divert them safely to chassis ground before they can damage... [See More]

  • Connection: DB Type Connector (DB 9, DB 25 etc.)
  • Maximum AC Power: 1500
  • Mounting: Plug-in
  • Standards: IEEE