Switches and Hubs
Switches and Hubs represent networking devices used to connect multiple devices in a local area network (LAN). Hubs operate at the physical layer of the OSI model, allowing devices to communicate with each other by forwarding data packets to all connected devices. On the other hand, Switches operate at the data link layer, ensuring efficient data transmission by forwarding packets only to the intended recipient. Switches and Hubs play a crucial role in creating a reliable and secure network infrastructure, improving overall network performance and speed. These devices are essential in managing network traffic, enhancing connectivity, and facilitating seamless communication between devices.
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Plexcom STD Plexit 8054 10Base-T Ethernet Transceiver AUI DB15 RJ45
Plexcom
$45.00Was: $90.00Plexcom STD Plexit 8054 10Base-T Ethernet Transceiver AUI DB15 RJ45This is a 10Base-T Ethernet transceiver (MAU) that bridges AUI and 10Base-T connections. It converts signals between the DB15 AUI interface and RJ45 10Base-T cabling.Specifications &...14771- SKU:
- 14771
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 4.00 LBS
- Brand:
- Plexcom
- Model:
- STD Plexit 8054
- MPN:
- 8054
- Type:
- 10Base-T Ethernet Transceiver (MAU)
- SKU:
- 14771
- Condition:
- Used – Inspected
- Interface Type:
- AUI (DB15) and 10Base-T (RJ45)
- Network Standard:
- 10Base-T Ethernet (IEEE 802.3)
- Data Rate:
- 10 Mbps
- Connector Type:
- DB15 AUI (female), RJ45
- Power Requirements:
- 11-16Vdc, 500mA MAX
- LED Indicators:
- Power, Link, Tx, Rx
- SQE Test Switch:
- On/Off (visible on rear panel)
- Form Factor:
- External Desktop / Standalone
- Country/Region of Manufacture:
- United States (Simi Valley, CA)
- Seller Notes:
- Unit only — no power supply or cables included.
- Condition Notes:
- Plexcom STD Plexit 8054 10Base-T Ethernet transceiver. Visually inspected; clean housing with minor shelf wear. RJ45 and DB15 AUI connectors appear undamaged. Not bench-tested. Please contact us with questions.
$45.00Was: $90.00 -
Wellfleet Bay Networks SRMF 104276 P104276 R04 PCB 104279 Rev B Circuit Board
Bay Networks
$60.00Was: $125.00Wellfleet Bay Networks SRMF 104276 P104276 R04 PCB 104279 Rev B Circuit BoardNetworking circuit board / router card for Wellfleet and Bay Networks routing and concentration equipment. Dual Xilinx XC2064-70 PC68C FPGAs provide data processing...14765- SKU:
- 14765
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 2.00 LBS
- Brand:
- Wellfleet Communications
- Model:
- SRMF 104276
- MPN:
- P104276 R04
- Secondary Model:
- PCB No. 104279 Rev B
- Type:
- Networking Circuit Board / Router Card
- SKU:
- 14765
- Hardware Revision:
- Rev B
- Board Designation:
- SRMF BD
- PCB Number:
- 104279
- Part Number:
- P104276RC
- Chipset:
- Dual Xilinx XC2064-70 PC68C FPGAs
- Form Factor:
- Card / Module
- Compatible With:
- Wellfleet / Bay Networks Routers and Concentrators
- Country/Region of Manufacture:
- United States
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Board only. Inspected and appears to be in good condition.
- Condition Notes:
- Wellfleet Bay Networks SRMF 104276 P104276 R04 circuit board. Inspected, good used condition. Normal handling wear. Clean, no visible damage. Pulled from a working networking environment.
$60.00Was: $125.00 -
Bay Networks 111316-08 Circuit Board Card Module P111316-08RB
Bay Networks
$50.00Was: $100.00Bay Networks 111316-08 Circuit Board Card Module P111316-08RBThis is a networking circuit board module from Bay Networks, designed to function as a card-based component within Bay Networks switching and routing equipment from the 1990s and early 2000s...14764- SKU:
- 14764
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 22.00 LBS
- Brand:
- Bay Networks
- Model:
- 111316-08
- MPN:
- P111316-08RB
- Secondary Model:
- P111316-08RB
- Type:
- Circuit Board / Networking Module
- SKU:
- 14764
- Condition:
- Used – Pulled from Working Environment
- Form Factor:
- Card / Module
- Compatible With:
- Bay Networks networking equipment
- Chipset / ICs:
- AMD MACH130-15JC CPLDs (x2 visible)
- Seller Notes:
- Board only; no accessories included.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- Bay Networks 111316-08 circuit board (P111316-08RB) in used condition. Pulled from a working environment. Visually inspected; no obvious damage. Not bench-tested at our facility. Please contact us with any questions.
$50.00Was: $100.00 -
MICOM Instamux 470LR Local Multiplexor 25-Pin Ports 115V 1A RS-232 Desktop
MICOM
$60.00Was: $125.00MICOM Instamux 470LR Local Multiplexor 25-Pin Ports 115V 1A RS-232 DesktopLocal network multiplexor designed for serial data communication in industrial and telecom environments. Routes RS-232 signals across multiple 25-pin connections in the MICOM...14760- SKU:
- 14760
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 8.00 LBS
- Brand:
- MICOM
- Model:
- Instamux 470LR
- MPN:
- 478LR
- Type:
- Local Network Multiplexor
- SKU:
- 14760
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Unit only; power cord attached. No additional accessories observed.
- Country/Region of Manufacture:
- United States
- Form Factor:
- Desktop
- Power Requirements:
- 115V AC, 1A, 60Hz, Single Phase
- Voltage:
- 115V
- Amperage:
- 1A
- Fuse:
- 1 AMP 125V
- Phase:
- Single Phase (Ph 1)
- Frequency:
- 60 Hz
- Interface Type:
- RS-232 (25-Pin D-Sub)
- Connector Type:
- DB-25 (25-Pin)
- Number of Ports:
- Multiple 25-pin RS-232 ports (see photos)
- Compatible With:
- MICOM Instamux 470 Series local network systems
- Condition Notes:
- MICOM Instamux 470LR Local Multiplexor in good used condition. Light cosmetic wear on enclosure. Rear 25-pin ports appear intact. Includes attached power cord. Not bench-tested at our facility; pulled from a working environment.
$60.00Was: $125.00 -
Bay Networks P119298-AR12 BLN-2 Router Processor Board Rev 05 w/ PCMCIA Flash
Bay Networks
$100.00Was: $200.00Bay Networks P119298-AR12 BLN-2 Router Processor Board Rev 05 w/ PCMCIA FlashThe Bay Networks P119298-AR12 is a processor and routing board designed for installation in the Bay Networks BLN-2 router chassis. This is the core logic card for the BLN-2...14753- SKU:
- 14753
- Availability:
- Usually ships within 1–2 business days.
- Weight:
- 5.00 LBS
- Brand:
- Bay Networks
- Model:
- P119298-AR12
- MPN:
- P119298-AR12
- Secondary Model:
- P119298
- Hardware Revision:
- Rev 05
- Type:
- Router Processor Board / Chassis Module
- Compatible With:
- Bay Networks BLN-2 Router Chassis
- Form Factor:
- Card / Module
- Includes:
- Centennial Technologies PCMCIA Flash Memory Card
- PCMCIA Flash Card MPN:
- FL16M-20-11138-03
- PCMCIA Flash Card Part:
- PM24108 23798 292
- Flash Card Manufacturer:
- Centennial Technologies, Inc.
- Country/Region of Manufacture:
- United States
- SKU:
- 14753
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Includes Centennial Technologies PCMCIA Flash Memory Card (FL16M-20-11138-03)
- Condition Notes:
- Bay Networks P119298-AR12 BLN-2 router processor board, Rev 05. Pulled from a working environment. Includes Centennial PCMCIA flash card (FL16M-20-11138-03). Good used condition, no visible damage.
$100.00Was: $200.00 -
SynOptics LattisNet 3517SA Token Ring NMM Plug-In Module for Network Enclosure
SynOptics
$45.00Was: $90.00SynOptics LattisNet 3517SA Token Ring NMM Plug-In Module for Network EnclosureToken Ring network management module designed for installation in SynOptics LattisNet network enclosures. Provides monitoring and management functionality for Token Ring...14752- SKU:
- 14752
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 5.00 LBS
- Brand:
- SynOptics
- Model:
- 3517SA
- MPN:
- 3517SA TRNMM
- Secondary Model:
- 920-279
- Type:
- Token Ring Network Management Module (NMM)
- SKU:
- 14752
- Product Line:
- LattisNet
- Form Factor:
- Plug-In Module / Card
- Network Technology:
- Token Ring
- Data Rate:
- 4 Mbps / 16 Mbps
- Interface Type:
- Token Ring (BNC)
- Connector Type:
- BNC, DB-25, DB-9
- Number of Ports:
- 4 BNC Token Ring ports visible on front panel
- Compatible With:
- SynOptics LattisNet Network Enclosures
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Module board only; no additional accessories included.
- Country/Region of Manufacture:
- United States
- Condition Notes:
- SynOptics LattisNet 3517SA Token Ring NMM module. Used, pulled from a working network environment. Board inspected; good condition, no visible damage. BNC ports and front panel intact. Please contact us with any questions.
$45.00Was: $90.00 -
Bay Networks 5505P Token Ring Active Retiming Host Module 16-Port RJ-45
Bay Networks
$60.00Was: $125.00Bay Networks 5505P Token Ring Active Retiming Host Module 16-Port RJ-45This is a 16-port Token Ring active retiming host module for Bay Networks and SynOptics Lattisnet chassis systems. The module provides managed Token Ring connectivity with active...14702- SKU:
- 14702
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 7.00 LBS
- Brand:
- Bay Networks
- Model:
- 5505P
- MPN:
- 5505P
- Type:
- Token Ring Active Retiming Host Module
- SKU:
- 14702
- Condition:
- Used – Pulled from Working Environment
- Form Factor:
- Card/Module
- Number of Ports:
- 16
- Connector Type:
- RJ-45
- Network Technology:
- Token Ring
- Management Type:
- Managed
- Power Module:
- IPD SCS4805S1 (38-60VDC in, 48VDC nominal, 2500mA max)
- Input Voltage (Power Module):
- 38VDC to 60VDC, 48VDC nominal
- Max Current (Power Module):
- 2500mA
- Chipset / Controller:
- SynOptics 104-315-A (multiple ICs on board)
- Crystal Frequency:
- 14.745600 MHz (Pletronics PT100-3E)
- Country/Region of Manufacture:
- United States
- Seller Notes:
- Module only; no chassis or cables included.
- Compatible With:
- Bay Networks / SynOptics Lattisnet Token Ring chassis
- PCB Silkscreen:
- HDB T.R. ACTIVE/RETIMING HOST
- Condition Notes:
- Bay Networks 5505P Token Ring Active Retiming Host Module. Pulled from a working environment. Inspected and in good used condition. Light wear from prior rack use. No visible damage. Please contact us with any questions.
$60.00Was: $125.00 -
Bay Networks 5525 TR Switch Host Centillion 5000 Token Ring Module 960-426-BRB0
Bay Networks
$75.00Was: $150.00Bay Networks 5525 TR Switch Host Centillion 5000 Token Ring Module 960-426-BRB0The Bay Networks 5525 TR Switch Host is an 8-port Token Ring switching module designed for the Centillion 5000 chassis. It provides dedicated Token Ring switching for up to 8...14701- SKU:
- 14701
- Availability:
- Usually ships within 1-2 business days.
- Weight:
- 4.00 LBS
- Brand:
- Bay Networks
- Model:
- 5525
- MPN:
- 960-426-BRB0
- Secondary Model:
- SCHSEG002074
- SKU:
- 14701
- Type:
- Token Ring Switch Host Module
- Compatible With:
- Bay Networks Centillion 5000
- Number of Ports:
- 8
- Interface Type:
- Token Ring (TR)
- Port Speed:
- 4 Mbps / 16 Mbps
- Form Factor:
- Module / Card
- Management Type:
- Managed
- Network Technology:
- Token Ring
- Date Code:
- 9735 (week 35, 1997)
- Condition:
- Used – Pulled from Working Environment
- Seller Notes:
- Module only; no chassis included. P/N 960-426-BRB0.
- Condition Notes:
- Bay Networks 5525 TR Switch Host module (960-426-BRB0) for Centillion 5000. Pulled from a working environment, inspected, and in good used condition. Normal handling wear; faceplate intact. Module only, no chassis included.
$75.00Was: $150.00