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Black Box IC1474A-F Box Rs232 To Rs-422 Interface Bidirectional Converter - 1 X Db-9 Rs-232 , 1 X Rs-422 Terminal Block - Internal
- Device Type: Transceiver
- Max Distance: 4000 ft
- Power Adapter: Internal
- Model #: IC1474A-F
- $140.99 –
- More options from $140.99 - $157.02
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Black Box ICD100A Box Rs-232 To Rs-422/Rs-485 Din Rail Converter - 2 X Rs-232 Terminal Block, 1 X Db-9 - External
- Device Type: Transceiver
- Max Distance: 4000 ft
- Power Adapter: External
- Model #: ICD100A
- $217.99 –
- More options from $217.99 - $228.71
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- $1,428.00 –
- More options from $1,428.00
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Black Box ME800A-R4 Async RS-232 Extender Over CATx - DB25 Male to Terminal Block
- Ports: (1) DB9 F, (1) 4-screw terminal block, (1) RJ-11, (1) DC power jack
- Max Distance: 4 mi. (6.4 km) maximum
- Transfer Rate: 115,2000 bps at 4000 feet (1219.2m); 57,600 bps at 1 mile (1.6 km); 9,600 bps at 4 miles (6.4 km)
- Power Adapter: 115V AC, 60 Hz +/- wallmount, 9V DC, 500 mA, 4.5W maximum
- Model #: ME800A-R4
- $234.06 –
- More options from $197.99 - $234.06

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MOXA NPort 5230 2-Port Device Server, 10/100 Ethernet, RS-232 x 1, RS-422/485 x 1, Terminal Block
- Model #: RCCWB07BP1DVSY
- $306.99 –
- Free Shipping

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PCIe to Dual RS-485/422 Serial Port Card with DB9 Connectors - High-Speed 1-to-2 Multi-Port Expansion Card, Terminal Block Adapters
- Model #: TOLDB0F9FMG1PZ
- $75.99 –
- Free Shipping

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5 Ports 10/100M Adaptive Ethernet Network Switch Supports DC or Terminal Power Supply USR-SF1005
- Model #: CLOLB0DN5GF535
- $71.99 –
- Free Shipping

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MOXA NPort 5430 w/Adapter 4-Port RS-422/485 Serial Device Server, 10/100 Ethernet with Power Adapter, RS-422/485, Terminal Block
- Model #: CIKHB07CHQPZPG
- $799.99 –
- More options from $799.99 - $936.99
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TONE GENERATOR INPUT, 4 OF 8 SELECTABLE, SCREW TERMINAL
- Brand: Bogen Communications
- Model #: TNG1S
- $108.14 –

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PCIe to 4-Port RS-485/422 Serial Card, High-Speed 9-Pin DB9 COM Port Expansion with Surge/Lightning Protection, Voltage Suppression Terminal Blocks
Limited time offer, ends 09/29
- Model #: C731-45-LJU01
- $85.13 –
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PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
- Model #: C7FK-OYS-2026.7.28-573
- $75.99 –
- Free Shipping

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PCIe to 8-Port RS-485/422 Serial Port Card, 8-Channel COM Expansion Card with TVS, Lightning/Surge Protection & Terminal Blocks - Industrial Multi-Port Data Communication
- Model #: C7FK-OYS-2026.7.28-837
- $128.99 –
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PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
- Model #: C7FK-OYS-2026.7.28-67
- $75.99 –
- Free Shipping

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Vszerda PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
Limited time offer, ends 10/14
- Model #: JY9T84G6
- $148.99 –
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CAN Bus Relay Repeater,OPEN4 Terminal Block 226CAN Bus Isolator with ID/Data Conversion Function
- Model #: HANLB0GRH1ZXZ9
- $340.59 –
- More options from $340.59
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Vszerda PCIe to 8-Port RS-485/422 Serial Port Card, 8-Channel COM Expansion Card with TVS, Lightning/Surge Protection & Terminal Blocks - Industrial Multi-Port Data Communication
Limited time offer, ends 10/14
- Model #: 98G4D9R
- $188.99 –
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2 Packs 6 Duplex Singlemode LC-OS2 12 Port LC Wall Mount Enclosure Box Desktop Terminal Box + Splice Trays Fiber Cables LC-UPC Kit (Includes Pigtails and Couplers)
- Model #: RCCWB0DTT8R8P4
- $155.99 –
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MOXA NPort 5230A 2 Port Device Server, 10/100M Ethernet, RS-422/485, Terminal Block, 15KV ESD, 0.5KV Serial Surge, 12~48VDC, 0~60C
- Model #: RCCWB07C6694DM
- $546.99 –
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Panasonic DIGITAL LINK Terminal Board TYSB01DL
- Model #: TYSB01DL
- $561.07 –
- More options from $561.07 - $654.99
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Ubiquiti Networks U Fiber OLT UF-OLT-4 4-Port GPON Optical Line Terminal with 3
- Model #: 21c-285628000123575
- $1,439.00 –
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Ubiquiti Networks U Fiber UF-OLT-4 4-Port GPON Optical Line Terminal with 3 GPON and 1 SFP+ Ports up to 512 UFiber ONUs (128 per PON port)
- Format: Rackmount
- Model #: UF-OLT-4
- $1,655.00
- $1,429.00 –
- Save: $226.00 (13%)
- More options from $1,189.00 - $1,429.00
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StarTech 5-Port Unmanaged Industrial Network Switch I51G-ETHERNET-SWITCH
- Brand: StarTech
- Part Number: I51G-ETHERNET-SWITCH
- Uplink Interface: RJ45
- Primary Ports: RJ45
- Model #:
- $93.99 –
- More options from $93.99 - $102.33
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ESP8266 WiFi Relay Module with ESP-01S, Wireless Remote Smart Control Switch, DIY Smart Socket Controller, Mobile WiFi On/Off Relay Board for Smart Home Automation, Electronic DIY Projects
- Model #: TECH CABIN - TCH237
- $18.35 –
- Free Shipping

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CyberPower RMCARD400 UPS Network Management Card
- Model #: RMCARD400
- $439.95 –
- More options from $436.99 - $568.00
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Revotech Gigabit PoE Splitter 48V to 12V 2A, 5.5x2.5mm DC IEEE 802.3af/at Standard Power Over Ethernet Splitter Adapter for Security IP Camera,Voip Phone, AP (PS5712TG-25)
- Model #: C1R8491251791616
- $26.77 –
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