LineSelect® Model 9084 RJ45 Secure A/B Keylock Switch w/Position Feedback, Manual Control, DIN Rail Mounted, Cat5e Compliant
Overview
Manually switch a single Ethernet device between two networks or devices with confidence using this rugged, keylock-secured RJ45 A/B switch - delivering true 8-wire Cat5e performance, zero power requirements, and reliable control for mission-critical environments.
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Convenient DIN rail mounting, ideal for use in process control systems.
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Secure Switching with Keylock Control – Integrated keylock prevents unauthorized changes, making it ideal for controlled IT, lab, and secure network environments.
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Instant Manual A/B Switching (No Power Required) – Easily toggle between two RJ45 connections via a reliable rotary switch—no software, no latency, no external power needed.
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Full 8-Wire, Cat5e Signal Integrity – Switches all eight pins to support 10/100/1000 Ethernet while preserving performance and minimizing signal loss.
FEATURES OF THE MODEL 9084 A/B KEYLOCK SWITCH:
- Allows (1) COMMON RJ45 port to be shared among either of (2) RJ45 ports A and B.
- Key can be removed in the A position only.
- Manual operation via front panel mounted keylock switch.
- Switches all 8 leads of the RJ45 interface via break-before-make keylock switch.
- Position feedback for the "B" position via short or closed circuit on 2 screw terminals mounted next to the RJ45 ports.
- Certified for category 5e compliance.
- Manually operated keylock switch. No power required.
- DIN-rail bracket on rear panel.
- Grounding screw is mounted on the front panel.
- Custom length Cat5e RJ45 cables available.
TECHNICAL SPECIFICATIONS:
- PORT CONNECTORS: (3) RJ45 female connectors labeled A, B, and COMMON.
- FRONT PANEL CONTROL: (1) Keylock switch allows local switching.
- MONITOR PORT: (1) Barrier strip allows position feedback.
- POWER: No power required. Manually operated.
- ENCLOSURE: Shielded all metal black enclosure.
- DIMENSIONS: DIN Rail Mount Package: 1.75" W x 4.70" H x 6.30" D. (4.5 x 12.0 x 16.1 cm)
- WEIGHT: Approximately 1.4 lbs. (0.6 kg)
The Model 9084 RJ45 A/B Switch with Position Feedback Switch Operation: Access two RJ45 devices connected to its A and B ports with one RJ45 device connected to its COMMON port. The unit is a manually operated keylock switch, requiring no power. Port selection is quick and easy via a front panel keylock switch. The Model 9084 switch is easily integrated as a system component by utilizing its rear panel DIN rail mounting bracket.
CAT5e KEYLOCK A/B SWITCH APPLICATION WITH BARRIER STRIP: The drawing illustrates a COMMON device connected to the RJ45 COMMON port with access to either a Device A or Device B via a Keylock switch. The illustration also shows a MONITOR Port Barrier Strip for position feedback.

Ordering Information
- Catalog Number: 309084
- Model Number: 9084
- Base Price: See website or contact us for current pricing and availability.
Documentation & Support
- Specification Sheet (PDF) Download Available.
- Product Manual available upon request.
- For custom fiber optic network switch requirements contact our sales support team 401-943-1164 or email eslab@electrostandards.com
- We welcome international inquiries and ship worldwide.
Shipping and Returns 
- Shipped via UPS ground (unless otherwise requested).
- Freight Charges prepaid and added to invoice. We can estimate freight charges for you.
- Return policy: contact us within 30 days of shipment for an RMA number. Items returned without RMA not accepted. Please refer to our full return policy in our Terms and Conditions found on our website.
Custom Network Switches are available. Contact us by phone, email, or complete the Online Custom Products Form. /Products-Custom/Copper-Switch/
Electro Standards can supply all of your Network Cable requirements. Click here to reach our CABLES, COPPER NETWORK Webpage.
All data switch boxes, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects. The limit of ESL liability is limited to the cost of the ESL product provided.
*Prices online are subject to change and verification.
All ESL Data Communication Products are available for export.