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Catalog # 513904 - Model 4503 Feed Thru Adapter Option

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Catalog No: 513904
Model No: Feedthru Adapter/4503
Description:Optional "feed through" connector for M4503
Configuration:Optional "Feed Through" Connector for M4503


Shipping Terms

Shipments are made via UPS Ground, unless otherwise specified. Freight charges are prepaid and added to your invoice. We can estimate the freight costs for you.

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Products shall be shipped F.O.B. Electro Standards' facility. Title to and risk of loss or damage to the products shall pass to you upon Electro Standards delivery of the products to a carrier for shipment. Title to software will remain with the applicable licensor. Electro Standards' prices do not include shipping and handling charges. Electro Standards reserves the right to use its own discretion in the manner and routing of shipments. Electro Standards shall be permitted to deliver products in separate lots.

Shipping Return Policy

  • To return an item, contact Electro Standards at 401-943-1164 to obtain a Return Material Authorization (RMA) number. RMA numbers are valid for 30 days after the date of the shipment and cannot be extended or re-issued. We are unable to accept returns without an RMA number.
  • All returns except those of defective product are subject to a 15% restocking fee, and additional charges for handling or freight are refunded only in cases of defective products.
  • Return freight must be shipped prepaid. We recommend that you insure the package as you are responsible for risk of loss on all returned packages. We recommend that all cartons are properly packed as Electro Standards is not responsible for product damaged en route. We do not issue call tags for product returns.
  • Returned product must be clean, undamaged, and complete with all manuals, accessories, documents and packaging. The items must be in a resalable condition.
  • The product must have with it a copy of the original invoice or packing slip and the appropriate RMA paperwork.
  • If your item is not working properly, please contact Electro Standards at 401-943-1164 for help in trouble-shooting your application.
  • If the product is defective, Electro Standards will repair or replace that item (at our discretion) upon receipt and evaluation of the original product.
  • Electro Standards reserves the right to authorize product returns after 30 days from the invoice date in some cases. If the product is accepted after 30 days, credit will be issued toward future pruchases only and some additional restocking charges may be applied.
  • All credits from RMAs must be used within one calendar year of issue.

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DB9 F/F Feedthru Adapter with Mounting Plate
for Model 4503 Seismic-Proof DB9 A/B Switch

Model 4503 was designed to withstand an environment subject to vibrations. This switch and its feed-through connector have successfully passed the rigorous seismic testing of the EPRI "SQURTS" program, qualifying it for use in nuclear power plants.

Model 4503 allows data to pass through all pins of the DB9/F connector interface and switches all pins simultaneously. The Keylock Option provides "pass-key-only" access to switching. Key is captive in B position and removable in A position. Model 4503 switch is available with mounting ears to secure it to a panel.

Model 4503 Features:

  • Optional "pass-key only" access ensures proper authorized usage (Catalog No. 304503-Opt-1)
  • Optional "mounting ears" allow firm attachment (Catalog No. 512959)
  • Optional accessory "feed-through" connector (Catalog No. 513904, DB-9 F/B Adaptor Plate)


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