Moxa IM-6700A-4MSC2TX – Fast Ethernet fiber/copper interface module for IKS-67xxA modular switches

If you’re expanding a Moxa IKS-6726A/IKS-6728A chassis and you need more Fast Ethernet fiber alongside some copper, the IM-6700A-4MSC2TX hits a practical sweet spot. It adds four 100Base‑FX multi‑mode SC fiber ports plus two 10/100Base‑T(X) RJ45 ports in a single plug‑in, giving you reliable fiber uplinks to cabinets while keeping a couple of copper drops for local PLCs or HMIs. One thing I appreciate is how it slots straight into the modular bay and just works with the switch’s existing software features—no fiddly setup, no extra power wiring.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: typically 1 week if in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• 4× 100Base‑FX multi‑mode SC ports – 1310 nm optics, typically up to 2 km per link on 50/125 or 62.5/125 μm fiber. Good for plant‑to‑cabinet runs without repeaters.
• 2× 10/100Base‑T(X) RJ45 ports – Auto‑negotiation and auto MDI/MDI‑X, handy for nearby controllers or engineering laptops.
• Backplane‑powered module – No external power; installs directly into the IKS‑67xxA chassis slot with captive screws.
• Works with your switch’s redundancy – Plays nicely with IKS‑series features such as Turbo Ring/Turbo Chain and RSTP, which in many cases shortens recovery times for field networks.
• Front access LEDs – Quick link/activity checks without opening the cabinet.
• Industrial build – From my experience, this module stands up to electrical noise found around drives and MCCs when fiber is the preferred medium.

Technical Specifications

Real‑world usage

A water treatment site we support used this module to pull four multi‑mode fiber runs from the control room to outdoor pump stations (about 1.2 km each), while keeping two copper ports for a maintenance laptop and a local RTU. They mentioned the mixed port layout saved them a second module and a lot of cabinet space.

Related or Supporting Products

• Moxa IM-6700A-4MSC2TX-T – Same port mix with wide temperature support for harsher sites.
• Moxa IM-6700A-4SSC2TX – 4× single‑mode SC + 2× RJ45 if you need longer fiber runs (typically up to 40 km with appropriate optics).
• Moxa IM-6700A-6TX – Six 10/100Base‑T(X) RJ45 ports for all‑copper drops inside panels.
• Moxa IM-6700A-2MSC4TX – Two multi‑mode SC + four RJ45 if copper density matters more than fiber.
• Moxa IKS-6726A / IKS-6728A – Host modular chassis for these interface cards; choose the slot count and power options to suit the application.

Installation & Maintenance

• Cabinet & mounting – Install the module into an available IKS‑67xxA slot. Keep at least 50 mm clearance for fiber bend radius and airflow; use industrial 19″ rack or grounded enclosure.
• Fiber practice – For multi‑mode SC, stick to 50/125 or 62.5/125 μm; keep total link budget within spec and polish/clean connectors before mating. You might notice most link issues trace back to dirty ferrules.
• Wiring – Use shielded Cat5e (or better) for RJ45 inside noisy cabinets; segregate from VFD cabling where possible.
• Safety – De‑energize the host switch if you’re unsure about hot‑swap policy at your site; secure the module with its captive screws to avoid vibration‑related faults.
• Routine care – Dust the front panel and clean SC connectors as needed; check link LEDs after maintenance. Firmware features live on the host switch—plan periodic updates on a maintenance window.

Quality & Certifications

• Certifications: CE, FCC, RoHS compliant; UL 508 recognition on the host platform is typically supported for IKS‑series systems.
• Manufacturer policy: Moxa commonly provides extended hardware warranties on switches; our supplied units include a 365‑day warranty as stated above.