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CAT3 Telco Cables with 50 Pin Male to Female Telco Connectors


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Product Description

Cablesys (CBS) Telco cable, also known as Amphenol cable, is widely used for multiple data and voice lines in applications such as telephone, PBX, IP phone systems and LANs. A male to female 90 degree telco connector is terminated on the ends to connect to related products, such as a telco patch panel or pre-terminated 66 wiring block. These cables can also be used to bridge telephone based switch boards and equipment requiring a Centronics 50 (CN50) type Amphenol connector.* CBS RJ21 telco connectors are built with Insulation Displacing Connectors (IDC). Using IDC is the preferred method for terminating 25 pairs of wires onto 25 pairs of polarized pins, 50 pins total, of the telco 90-degree connector. The terminals of the IDC have spring properties that hold the wires in a stable mechanical condition. For maximum data transmission, the contacts are made using high strength copper alloy and then plated with 30 micro inches of gold over nickel. The RJ21 connector uses screws to anchor into place instead of bail locks. A 90 degree telco connector is used for gateway connection. The jacket of the 25 pair Amphenol telco cable is gray and made of polyvinyl chloride (PVC). The jacket is UL CMR riser rated and flame retardant which allows the cable to be used in vertical settings, such as cable runs between floors through cable risers. The unshielded twisted pair (UTP) cable is made with 24 American Wire Gauge (AWG) solid copper conductors and 25 pairs of stranded wires. CBS male/female telco cable is factory tested to exceed TIA/EIA-568-B Category 3 (CAT3) industry performance standards. Cablesys Telco trunk cable is made in the USA and is RoHS compliant to protect the environment. Telco cables are available in 5 feet (Part No. GCTARMF005 ), 10 feet (Part No. GCTARMF010 ), 15 feet (Part No. GCTARMF015 ), 20 feet (Part No. GCTARMF020 ), 25 feet (Part No. GCTARMF025 ), 50 feet (Part No. GCTARMF050 ), 75 feet (Part No. GCTARMF075 ), and 100 feet (Part No. GCTARMF100 ).

*Amphenol is a trade name and trademark of Amphenol Corporation, and is in no way affiliated with, authorized, maintained, sponsored or endorsed by Cablesys or any of its affiliates or subsidiaries. All rights reserved.


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Shipping & Returns

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We will also pay the return shipping costs if the return is a result of our error; such as you received an incorrect or defective item. You should expect to receive your refund within four weeks of giving your package to the return shipper.

If you need to return an item, please contact us with your order number and details of the product you would like to return. We will respond quickly with instructions on how to return items from your order.

Custom and Built-to-Order

Custom or build-to-order parts are tailored to individual needs. Therefore, the order is non-cancellable and the parts are not returnable for a refund. Manufacturer warranty still applies.


We can ship to virtually any address in the U.S.A. and Canada. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for all items we sell are weight-based. Shipping courier policies require weights to be rounded up to the next full pound.

All in-stock items ship within 1-2 business days. If you need an item shipped immediately, please contact our sales team before placing an order. They will arrange for your items to be shipped the same day, if possible.

Free Shipping

You will receive free ground shipping with a purchase of at least $99 (excluding taxes). Canceling items, combining orders, or changing your shipping address, speed or preference might affect your order's eligibility. Free shipping is available for 48 contiguous states within the continental US only. PO Boxes, FPO/APO, and Canada are excluded.

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You may return most new, unopened items within 30 days of delivery for a full refund. Custom or build-to-order parts are non-cancellable non-returnable for a refund.

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