Network Switch allows 2-channel simultaneous switching.

Press Release Summary:

Model 9093 Dual Channel DB9 A/B/C Switch allows sharing of one DB9 device among 3 others for both channels and eliminates need to plug and unplug cables. High-quality sealed unit lets users simultaneously switch two DB9 channels via front panel rotary switch. It features self-wiping metal contacts encased in anodized black box with EMI/RFI shielding. No external power is required.

Original Press Release:

Simultaneously Switch Two DB9 Channels with the Model 9093

Electro Standards Laboratories (ESL), Cranston, RI, has just announced the new Model 9093 Dual Channel DB9 A/B/C Switch. This dual channel network switch allows the user to share one DB9 device among three others for both of its channels.

The M9093 is a high quality sealed switch with self-wiping precious metal contacts encased in an attractive anodized black box which provides EMI/RFI shielding. Using no external power, the M9093 can simultaneously switch two DB9 channels via the front panel rotary switch. This DB9 switch will eliminate the need to plug and unplug cables and will improve network efficiency by allowing the sharing of peripherals.

For more information on ESL data network switches or other network products, call 401-943-1164,, or

All Electro Standards Network Switches are available for export. Government Agencies contact Electro Standards for GSA pricing on COTS (Commercial-Off-The-Shelf) network switches.

Electro Standards Laboratories

36 Western Industrial Drive

Cranston, RI 02921

Tel: 401-943-1164

Fax: 401-946-5790


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