LineSelect® Model 9478 Dual 4-Channel RJ45 Cat5e A/B Keylock Switch – Independent Group Control
Overview
The LineSelect® Model 9478 Dual 4-Channel RJ45 Cat5e A/B Keylock Switch provides secure, convenient switching between two network connections or devices across eight RJ45 channels. Featuring two independent keylock controls, the switch allows each four-channel group to be simultaneously switched between A and B positions, providing flexible control of multiple Ethernet connections. Its all-metal, rackmount enclosure is designed for EMI/RFI shielding, while its fully manual operation requires no external power. Supporting all eight pins of each RJ45 interface, the Model 9478 eliminates the need to repeatedly disconnect and reconnect cables, helping reduce connector wear and simplify network management.
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Two Independent Four-Channel Groups!
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Applicable to switching ANY RJ45 interface, quickly and reliably
FEATURES OF THE MODEL 9478 RJ45 A/B KEYLOCK SWITCH:
- Both 4-Channel switches of RJ45 Cat5e A/B are switched via the two front panel Keylock actuators located on the front panel using a style "C" key.
- Tested for Cat5e compliance.
- Both keys are removable in the "A" position and captive in the "B" position.
- All 8 pins of the RJ45 interface are switched via break-before-make keylock switch.
- High quality sealed switch with self-wiping low impedance contacts.
- Manually operated keylock switch. No power required.
- Attractive all metal black box packaging provides EMI/RFI shielding.
- Rackmount configuration is standard.
- Lifetime warranty against manufacturing defects.
- For a RoHS Compliant version of the Model 9478, See Model 9478R, Cat No 309748R.
MODEL 9478 DUAL 4-CHANNEL GROUP OPERATION:
- The LineSelect® Model 9478 enables each of four RJ45 Cat5e Common ports to select either of two network LANs or devices via A or B port RJ45 connectors with each of its Dual 4-Channel Groups.
- All four channels in each group are switched simultaneously via a keylock actuator located on the front panel.
- The key for each 4-Channel Group is uniquely keyed as a style C key.
- The unit supports all 8 pins of the RJ45 Cat5e interface.
- No need to plug and unplug cables thereby eliminating connector wear.
- The LineSelect® Model 9478 is enclosed in a 2U full rack size, all metal black chassis designed to provide EMI/RFI shielding and fit in a standard 19" rack.
TECHNICAL SPECIFICATIONS:
- PORT CONNECTORS: (24) RJ45 female connectors labeled A, B, and COMMON, for each of the 8 channels.
- FRONT PANEL CONTROL: (2) Keylock switches on front panel. Each keylock actuator selects A or B (key captive position) switching all 4 channels simultaneously by inserting a style C key.
- POWER: No power required. Manually operated.
- DIMENSIONS: Rackmount: 19.0" W x 3.5" H x 8.22" D. (48.3 x 8.9 x 20.9 cm)
- WEIGHT: Approximately 5.9 lbs. (2.7 kg)
LineSelect® Model 9478 Dual 4-Channel RJ45 Cat5e A/B Keylock Switch, Simultaneous Control
The Model 9478 is a dual-group, four channel RJ45 Cat5e switch that utilizes two keylocks to simultaneously switch each 4-Channel Group from A to B Positions.

Ordering Information
- Catalog Number: 309478
- Model Number: 9478
- Base Price: See website or contact us for current pricing and availability.
- Optional Wide-Range power supply: Catalog Number 517277 IEC C14 Inlet, 100-240VAC, 12 VDC
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, by clicking here.
Electro Standards can supply all your Network Cable requirements. Click here to reach our Copper Cable Assemblies Webpage.
All ESL Secure Offline Switches are available for export.
All data switches, 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.