V 35 Serial Cables
Overview
Product sourcing insights & recommendations
The V.35 serial cable is a legacy high-speed interface standard historically used for connecting routers to Data Service Units (DSUs) in synchronous data transmission. While it has transitioned from a mainstream networking staple to a niche industrial component, it remains critical for maintaining existing telecommunications and legacy enterprise infrastructure.
Core Product Overview
V.35 cables are defined by their distinctive 34-pin Winchester block (M/34) connectors. Modern availability is dominated by Cisco-compatible designs used to interface Smart Serial or LFH60 router ports with traditional V.35 networks.
* Primary Variants:
* DTE (Data Terminal Equipment): Typically uses a Male Winchester connector (e.g., CAB-SS-V35MT, CAB-V35MT) CiscoAlibaba.
* DCE (Data Communications Equipment): Typically uses a Female Winchester connector and provides the clocking signal (e.g., CAB-SS-V35FC, CAB-V35FC) AlibabaAlibaba.
* Physical Specifications: Standard lengths are 10ft (3m), featuring 28 AWG tinned copper wiring and high-density shielding to ensure signal integrity AlibabaAlibaba.
* Signaling: Combines balanced differential signaling for high-speed data/clocking and unbalanced lines for control signals (RTS, CTS, DSR, DCD, DTR) CiscoNetworkencyclopedia.
Market Trends & Insights (2025–2026)
The V.35 market is characterized by "maintenance and migration" rather than new deployment.
* Shift to Legacy Status: The ITU-T officially replaced V.35 decades ago, but it persists in sectors where hardware replacement is cost-prohibitive, such as military, government, and heavy industrial automation Networkencyclopedia.
* Replacement Trends: Modern WAN connections have largely migrated to Fiber (SFP/SFP+) or Gigabit Ethernet, which provide massive bandwidth (1Gbps+) compared to the 2.048 Mbps limit of V.35 CiscoNetworkencyclopedia.
* The "Converter" Market: A growing trend is the use of V.35-to-Ethernet or V.35-to-USB converters, allowing modern servers and routers to interface with legacy leased-line hardware without specialized interface cards GlobalspecNetworkencyclopedia.
* Supplier Landscape: Production is now concentrated among specialized B2B manufacturers (e.g., Stonewall Cable, Vision Electronical) that cater to custom length and high-shielding requirements for legacy maintenance StonewallcableAlibaba.
Technical Performance Limits
As a synchronous interface, V.35 performance is strictly distance-dependent:
* High Speed (1.5 - 2 Mbps): Maximum reliable distance is roughly 50 feet (15 meters) Cisco.
* Standard Speed (56 Kbps): Can reach up to 102 feet (31 meters) Cisco.
* Low Speed (9.6 Kbps): Capable of distances up to 1,000+ feet (312 meters) Cisco.
V.35 34 Pin Winchester Block Serial Cable Custom Length
Products · 3 lists
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Sources & References
52 sources cited · Verified industry data & reports
V.35 Serial Cables | Products & Suppliers
www.globalspec.com
Description: Category: Cables Win Source Part Number: 1385466-CISCO CAB-SS-V35MT - V.35 Cable, DTE Male to Smart Serial, 10 Feet Manufacturer: CISCO ... Serial Communications Products - Serial Converter, USB 2.0 Locked Serial Num to RS-232 DB9 M, Isolated -- BB-USO9ML2-LS-A ... Description: Supports serial RS-232. Easy to set up with a DB9 M on the RS-232 side and a high retention USB connector that works with a standard USB cable (included). Description: more Serial Port Tunnelling allows serial cable replacement over any distance, no software required Power supply included (power input 5-30V DC) ... Oak-Trees, Inc. Unsinter PTFE 35 · Product Features Ultra-thin unfired tape Using for primary purposes Probe cable suppression winding (read more) Browse Cable and Electrical Tapes Datasheets for Oak-Trees, Inc. Grand bar 35/30 · Grand bar 9/12/100 are tinned products for shielded FFC. (read more) Browse Cable and Electrical Tapes Datasheets for Oak-Trees, Inc. Omnetics Connector Corporation Videojet V548 marking system to Capabilities · successfully on all Omnetics product families including both metal and plastic housings. Due to an increase in customer requirements for additional marking criteria including part number revision level and serial number marking, Omnetics has added a Videojet V548 marking system to our capabilities (read more) Browse Cable Harness and Wire Harness Services Datasheets for Omnetics Connector Corporation Supplier: ACCES I/O Products, Inc. Description: Features Universal PCI, PCI-X, 3.3V and 5V compatible (Call for PCI-Express availability) Optically isolated, asynchronous serial communications Two independent ports each supports RS-422 or RS-485 communications Type 16550 buffered UARTs protect ... Supplier: Data Connect Enterprise, Inc. Description: The Patton Model 2040 V.35 to High Speed Serial Interface (HSSI) converter lets a HSSI (HD-50) device communicate bi-directionally with a V.35 (M/34) device at synchronous data rates up to 10 Mbps.
5-in-1 V.35 Assembly and Pinouts - Cisco
www.cisco.com
The table here shows the V.35 DTE cable pinouts (DB-60 to 34-Pin). ... The cable gender for this product (part number 72-0792-01) is male DB-60 to female Winchester Block Type, mode - DCE. The CAB-V35FC serial cable is used in the Cisco 7000 family, Cisco 4000 series, Cisco 3600 series, Cisco 2500 series, Cisco 1600 series, Cisco access servers, and AccessPro PC cards. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language. ... This document explains the V.35 serial cable assembly and pinouts. Caution: The EIA,TIA-449 and V.35 interfaces support data rates up to 2.048 Mbps. Cisco advices not to exceed this maximum as it could result in loss of data. The cable gender for this product (part number 72-0791-01) is male DB-60 to male Winchester 15 Pin, mode - DTE. The CAB-V35MT serial cable is used in the Cisco 7000 family, Cisco 4000 series, Cisco 3600 series, Cisco 2500 series, Cisco 1600 series, Cisco access servers, and AccessPro PC cards. The table here lists the different V.35 speed and distance limitations:
V.35: Understanding the High-Speed Serial Transmission Standard ...
networkencyclopedia.com
Pin-out example of a serial cable used in V.35 interface ... V.35 is a high-performance serial transmission standard that offers several notable technical features: Speed and Distance: It supports data transfer rates up to 1.544 Mbps, making it suitable for high-speed applications. Versatility: V.35’s versatility allows it to be used in various network configurations, adaptable to different types of DTE and DCE. In conclusion, the technical sophistication and versatility of V.35 have made it a valued standard in the world of serial data transmission. Its applications in various high-speed and long-distance scenarios underline its importance in the history and development of data communication technologies. Niche Applications: Today, V.35 is primarily found in specific legacy systems or niche applications where its particular capabilities are required. It is no longer a mainstream standard in modern data transmission technologies. V.35’s journey from a leading high-speed standard to a more niche role in today’s technology landscape reflects the rapid evolution of data transmission methods and the continual advancement towards faster, more efficient, and more versatile communication technologies. ... Quality of Cabling: Use high-quality cables to minimize signal loss, especially when operating near the maximum distance capabilities of V.35. You can sometimes use V.35-to-RS-232 gender changers to connect V.35 equipment using 25-pin (DB25) serial cables.
Serial Cables Selection Guide: Types, Features, Applications | ...
www.globalspec.com
Related Products · cable reel system · cable RJ11 RS422 · DB15 serial pinout · flexible RS422 cable · RF sniffer · RJ11 cable spec · RS422 crossover cable · RS485 cable manufacturer · 16 pin serial cables · 8 pin DIN serial cables · 8 pin serial cables · DB9 to DB15 serial cables · RJ11 to USB serial cables · RS232 null modem serial cables · shielded serial cables · v.35 serial cables Fibre Channel cables consist of twisted-pair, coaxial, or fiber optic cables that use a high-speed, serial data transfer architecture. Small computer system interface (SCSI) devices can use Fibre Channel arbitrated loop (FC-AL), the most popular Fibre Channel typology. The various types of serial cable may be also grouped by application. The application may determine the cable's dimensional and electrical specifications, as well as its end connectors and approvals and certifications. Suppliers offer serial cables for audio / video (A/V), automotive, imaging, medical, radio frequency (RF), and telecommunications applications. There are also cables for personal computers (PCs), local area network (LAN) and Ethernet applications, and industrial control and instrumentation systems. Cordage and extender cables are types of serial cables which may suit a variety of applications.
V.35 Cables & Gender Changers - Stonewall Cable
www.stonewallcable.com
4-Strand OM4 Multimode 50/125 10/40/100 Gig Laser Optimized Fiber Distribution Cable with Furcation Tubing; Choose Connectors, Jacket Type, and Optional Pulling Eye. Available in Any Length! ... RJ21 Cat5e Cable 25 Pair Telco Male / Telco Female; Choose Any Length, Jacket (PVC or Plenum), and Degree of Cable Exit · 735A Cable BNC Plug / BNC Plug *SC-7154-1a Customize · 735A Coaxial Cable 75 Ohm BNC Plug / BNC Plug; Choose Any Length, and Jacket (Standard PVC or Fire Rated Plenum) ... Stonewall Cable offers V.35 Straight-thru and Crossover cables in any length. Select the Project You Wish to Add this Product to: ... Welcome to Stonewall Cable! Available with PVC, Plenum, or LSZH jacket. Every cable is manufactured to V.35 specifications with fully shielded, low capacitance wire and with the proper pairing and grounding that is critical to V.35 performance. If you're not sure which cable you need, call or e-mail for assistance. Duplex OM3 Multimode 50/125 10 Gig Laser Optimized Fiber Cable; Choose Color, Jacket Type (Riser, Plenum or LSZH), Connectors and Optional Pulling Eye.
Smart V.35 Serial Cables - Reliable and Versatile Solutions
www.alibaba.com
Standard V.35 Serial Cable: This is the most commonly used type, suitable for basic data transfer applications. V.35 serial cables come in various types, each tailored to cater to specific needs. The versatility of the v.35 serial cable enables a wide range of applications: The v.35 serial cable is an essential component in data communication, particularly designed for connecting network devices such as routers and switches. Utilizing a standardized interface, this cable facilitates robust and efficient data transfer, making it a go-to option for professionals in telecommunications and networking.