Description
RAMiX PMC661J – Dual‑Port Gigabit Ethernet PMC for Embedded VME/cPCI Systems
The RAMiX PMC661J is a practical choice when you need reliable 10/100/1000Base‑T networking on a PMC mezzanine card. It typically integrates a dual‑port Intel Gigabit Ethernet controller and exposes two RJ‑45 ports on the front panel, so you can drop it into a VME, CompactPCI, or VPX carrier and get copper GbE up and running fast. From my experience, it’s popular in test stands, data acquisition racks, and life‑extension projects where a proven PMC footprint still makes a lot of sense.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery time: 1 week for in‑stock; no more than 1 month at the latest
- Payment: 50% advance payment, full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Dual 10/100/1000Base‑T (RJ‑45) front I/O – Two copper GbE ports on the bezel for straightforward cabling with Cat5e/6.
- Intel-based controller – Typically 82546‑class silicon for stable drivers and long software support across Linux, Windows, and VxWorks.
- PMC bus compatibility – 32/64‑bit, 33/66 MHz PCI interface for legacy and mixed‑generation platforms.
- Advanced Ethernet features – 802.1Q VLAN tagging, jumbo frames (commonly up to 9 KB), and 802.3x flow control help with segmentation and throughput.
- Deterministic performance – Low, predictable latency that suits machine control HMI backhaul, test cells, and DAQ streaming.
- Front‑panel status LEDs – Quick link/activity/speed checks without digging into software.
- Driver depth – In many cases supported by standard e1000/e1000e stacks, easing integration and long‑term maintenance.
Technical Specifications
| Brand / Model | RAMiX PMC661J |
| HS Code | 8517.62 (Network interface equipment) |
| Form Factor | PMC (PCI Mezzanine Card), IEEE 1386 compliant |
| Bus Interface | PCI 2.2, 32/64‑bit, 33/66 MHz (host carrier dependent) |
| Ports / Media | 2 × 10/100/1000Base‑T via RJ‑45 (front panel), status LEDs per port |
| Controller | Intel dual‑port Gigabit (82546‑class, typical) |
| Power Requirements | 3.3 V DC (typ. ~2.0 A); 5 V auxiliary as required by carrier; ~6.5–9 W total, application dependent |
| Dimensions & Weight | Approx. 74 mm × 149 mm (standard PMC); ~0.15 kg |
| Operating Temperature | 0 to +55 °C (commercial grade typical); storage −40 to +85 °C; extended‑temp variants may exist |
| Signal I/O Types | Ethernet 10/100/1000Base‑T (auto‑negotiation, auto‑MDI/MDI‑X), 802.3x flow control, 802.1Q VLAN, jumbo frames (up to ~9 KB, typical) |
| Communication Interfaces | Front I/O RJ‑45; optional rear I/O mapping on Pn4 depending on carrier (varies by build) |
| Software Support | Drivers commonly available for Linux, Windows, and VxWorks via Intel e1000 family; check OS and kernel revision for best match |
| Installation Method | Mount on PMC carrier (VME/cPCI/VPX); front‑panel RJ‑45 access; secure with standoffs and bezel screws |
Real‑World Use Cases
- Refreshing legacy test systems by adding stable dual‑GbE uplinks to data servers without redesigning the main backplane.
- Industrial HMIs and soft‑PLCs on VME or CompactPCI carriers needing redundant or segmented Ethernet networks.
- DAQ and vision pipelines where jumbo frames help move large packets efficiently over copper links.
Related or Supporting Products
- RAMiX PMC662F – Dual‑port Gigabit Ethernet over fiber (SX/LX variants). Good when EMI immunity or long runs are needed.
- RAMiX PMC664J – Quad‑port copper Gigabit PMC. More ports in the same slot for denser switching/segmentation.
- XMC‑GbE2 (i350‑based) – XMC form‑factor successor with PCIe interface; useful when migrating from PMC to modern carriers.
- PMC Rear I/O Transition Module – If your build routes one port to rear I/O, a compatible transition module simplifies wiring inside the rack.
- VME64x / CompactPCI PMC Carriers – Standard carriers that host the PMC661J and present front panel RJ‑45 connectors.
Installation & Maintenance
- Environment: Install in a compliant PMC carrier within a ventilated enclosure. Keep ambient within the specified operating range; use forced air where heat load is high.
- Wiring: Use Cat5e/Cat6 for 1 Gbps. For longer copper runs, Cat6 is safer. Avoid tight bends and route away from high‑noise drives.
- ESD & Handling: Observe ESD precautions when inserting/removing the PMC. Seat firmly on the connector and secure using the standoff hardware.
- Drivers & Firmware: Match the Intel e1000/e1000e driver version with your OS revision. Firmware updates are rare for this class, but applying stable driver builds typically helps.
- Routine Care: Quarterly dust removal (dry air, low pressure). Check bezel screws and standoffs; verify link LEDs and error counters during maintenance windows.
- Network Tuning: Enable jumbo frames and interrupt moderation where throughput matters; for control traffic, you might prefer default MTU and conservative offloads.
Quality & Certifications
- Certifications: CE, RoHS; designed and manufactured under ISO 9001 quality systems. FCC Class A emissions are typical for this product class.
- Warranty: 12 months standard (our supply terms: 365 days coverage).
- Traceability: Lot/serial traceability provided on request; test reports available for many batches.
You might notice that many PMC661J deployments are still running after a decade; that’s usually thanks to the conservative Intel MAC/PHY choice and broad driver support. If you’re unsure about compatibility with your carrier or OS stack, share the carrier model and operating system version—I can double‑check lane width, rear I/O mapping, and driver alignment before you place the order.
Reviews
There are no reviews yet.