Surge Protection

What level of surge protection do Comtrol products provide?

In order to properly accommodate installation in harsh operating environments, all Comtrol DeviceMaster® device servers and RocketPort® multiport card serial connectivity products incorporate on-board protection from transient electrical surges produced by electrostatic discharge (ESD). This built-in protection is equivalent to a minimum of 10KV at 200 Amps for a duration of 1 nanosecond for RocketPort cards and 15KV at 200 Amps for a duration of 1 nanosecond for DeviceMaster products. Comtrol’s extensive experience designing serial communication products has shown 10 – 15KV ESD protection to be the optimal price/performance level for most operating conditions. To address the needs of customers requiring installations in the most extreme conditions, Comtrol offers Surge Interfaces for card products and "special order" DeviceMaster device server models with enhanced surge protection up to 25KV at 400 Amps current for a 10-nanosecond duration.

Surge Protection Specifications

The following table details surge protection ratings for Comtrol DeviceMaster device servers and RocketPort multiport serial card products.

Products Voltage Current
(Amperage)
Duration
(ns)
DeviceMaster FreeWire 15KV 200A 1ns
DeviceMaster PRO 25KV 400A 10ns
DeviceMaster RTS 15KV 200A 1ns
DeviceMaster RTS 25KV 400A 10ns
DeviceMaster RTS VDC 15KV 200A 1ns
DeviceMaster Serial Hub 15KV 200A 1ns
DeviceMaster Universal Protocol 15KV 200A 1ns
RocketModem IV 15KV 200A 1ns
RocketPort cards using RocketPort Interface 10KV 200A 1ns
RocketPort cards using RocketPort Interfaces (unity chip) 15KV 200A 1ns
RocketPort cards using RocketPort Interfaces (unity chip) 25KV 400A 10ns
RocketPort cards using RocketPort Rackmount Interfaces 10KV 200A 1ns
RocketPort cards using RocketPort Surge Interfaces 25KV 400A 10ns
RocketPort EXPRESS 15KV 200A 1ns
RocketPort INFINITY 15KV 200A 1ns
RocketPort Jet 15KV 200A 1ns
RocketPort Plus Universal PCI 25KV 400A 10ns
RocketPort Plus Universal PCI 422 25KV 400A 10ns
RocketPort Universal PCI 15KV 200A 1ns
RocketPort USB Serial Hub II 4KV 200A 1ns
RocketPort USB Serial Hub III 4KV 200A 1ns

* All DeviceMaster Ethernet components and RocketModem modem chips are rated to 1.5KV magnetic surge protection, in addition to the surge protection levels listed.