Accessories

Part Number	Description / PDF	Quantity
AT4153-012 NKK Switches	SW KEY HIGH SECURITY SW KEY #12	2
AT4147-007 NKK Switches	REPLACEMENT KEY FOR CKM SERIES	155
AT4078E NKK Switches	FRAME YLW FOR AT4077 BUTTON JB	0
AT453H NKK Switches	SHROUD RECT GRY FOR MB20/SCB SER	0
AT212A NKK Switches	HARDWARE BEZEL W/2 AT617LED BLCK	0
AT621CF24 NKK Switches	LAMP BI-COLOR LED 24VOLT	21
AT4152-027 NKK Switches	SW KEY TUBULAR HIGH SECURITY #27	39
AT527MA NKK Switches	HARDWARE HEX NUT METRIC BLACK	5
IS-SPA1X2A NKK Switches	OVERLAY 1X2 CN2476 2PK	0
AT4152-008 NKK Switches	SW KEY TUBULAR HIGH SECURITY #08	1011
AT501M NKK Switches	HARDWARE KNURLED NUT	111
AT512CH NKK Switches	NUT CONICAL INCH CHROME EB/MB20	601384
AT634F12 NKK Switches	LED QUAD ELEMENT W/RES 12V GREEN	0
AT4146-010 NKK Switches	REPLACEMENT KEY FOR CKM SERIES	8
AT217A NKK Switches	JWM BARRIER FLANGE BLACK	2045
AT213A NKK Switches	HARDWARE BEZEL W/2 AT618LED BLCK	262
AT4103A NKK Switches	SWITCH KNOB SMALL ROTARY BLACK	11401214
AT4072 NKK Switches	PROTECTIVE COVER FOR YB SERIES	10731766
AT506M NKK Switches	RING LOCKING FOR M/MB20/SB SER	357978
AT4152-048 NKK Switches	SW KEY TUBULAR HIGH SECURITY #48	28

Accessories

1. Overview

Switches Accessories refer to supplementary components that enhance the functionality, connectivity, and management of network switches. These accessories are critical in modern networking infrastructure, enabling efficient data transmission, power distribution, and system integration across industries.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Network Cables	Support data transfer (e.g., Cat6, Cat7, fiber optics) with varying bandwidths and shielding	Connecting switches to servers or endpoints in data centers
Power Over Ethernet (PoE) Injectors	Deliver power and data over a single Ethernet cable (IEEE 802.3af/at/bt compliant)	Powering IP cameras, VoIP phones, and wireless access points
Transceivers (SFP/QSFP)	Convert electrical signals to optical signals for high-speed transmission	Connecting switches in metro networks or backbone systems
Rack Mount Kits	Secure switches in standard 19-inch racks with adjustable mounting hardware	Organizing equipment in server rooms or telecom closets

3. Structure and Composition

A typical switch accessory combines mechanical and electrical components:

Enclosures: Metal or polymer housings for durability and EMI shielding
Connectors: RJ45, LC, or MPO interfaces with gold-plated contacts
Internal Circuits: Signal conditioning chips, power management modules, or optical conversion units
Cable Assemblies: Twisted-pair or fiber strands with PVC/LSZH jackets

4. Key Technical Specifications

Parameter	Unit	Importance
Port Density	Ports per unit	Determines scalability and space efficiency
Transmission Speed	Gbps	Impacts data throughput (e.g., 10/40/100/400Gbps)
Power Budget	Watts (W)	Defines maximum power deliverable to connected devices
Operating Temperature	C	Ensures reliability in harsh environments (-40 C to 85 C)

5. Application Fields

Telecommunications: 5G base stations, core routers
Smart Buildings: Access control systems, IoT sensor networks
Healthcare: PACS (Picture Archiving and Communication Systems) in hospitals
Industrial Automation: Connecting PLCs and SCADA systems

6. Leading Manufacturers and Products

Manufacturer	Representative Product
Cisco Systems	Cisco Catalyst 9200L Series Switch Accessories
Hewlett Packard Enterprise (HPE)	HPE Aruba 2930M Switch Modules
Juniper Networks	Juniper EX4650 Switch Transceivers

7. Selection Recommendations

Verify compatibility with switch models (e.g., SFP+ for 10Gbps ports)
Assess environmental conditions (e.g., industrial-grade PoE injectors for outdoor use)
Evaluate future scalability needs (modular vs. fixed configurations)
Compare certifications (e.g., CE, FCC, RoHS compliance)

8. Industry Trends

Key trends shaping switch accessories include:

Rise of 800Gbps+ optical transceivers driven by AI/ML workloads
Integration of Energy-Efficient Ethernet (EEE) to reduce power consumption
Adoption of software-defined networking (SDN) requiring programmable accessories
Growing demand for compact form factors (e.g., SFP-DD for high-density deployments)