| | Jan 28, 2009 — Electro Standards Laboratories (ESL), Cranston, RI, has just announced the Model 4124 DB9 A/B Automatic Fallback Switch with Contact Control Remote Port. This unique network switch includes special mounting, with steel pass-through bolts through the bottom of its desktop enclosure, making this A/B switch convenient for on-board ship use.
This DB9 switch allows the sharing of a single device connected to the Common port among two other devices connected to the A and B ports, accepting Contact Closure commands to control switch position, lockout local front panel pushbutton and obtain switch status remotely.
This switch does it all, including Automatic Fallback mode based on loss of data on port A. If activity is lost on port A, it will automatically switch to port B and maintain its position on port B until data is no longer detected, at which time the unit will switch back to port A. If neither port A or B have data activity, the unit will stay in the A position and continue to monitor data. Automatic Fallback Mode can also be overridden and unit can operate simply as an A/B switch.
For more information about Electro Standards’ Network Switches or cables, call 401-943-1164, eslab@ElectroStandards.com, or www.ElectroStandards.com. All ESL products are available for export. Government Agencies contact Electro Standards for GSA pricing on COTS (Commercial-Off-The-Shelf) network switches. | |
