اتصال فينيكس 2891002 تبديل إيثرنت الصناعية

Order-No.: 2891002；التعيين الكامل: FL SWITCH SFNB 8TX；يكتب: غير مُدار تبديل إيثرنت الصناعية

⚠️ Status: End-of-Life (موسوعة الحياة). Discontinued by manufacturer; only stock or replacement models are available.

المواصفات الأساسية

فك رمز النموذج

FL SWITCH: اتصال فينيكس industrial switch series

SFNB: غير مُدار, compact metal housing, جبل السكك الحديدية DIN

8: 8 copper ports

TX: Copper twisted-pair RJ45 interface

Scope of Delivery

1. Main unit FL SWITCH SFNB 8TX ×1
2. Integrated DIN-rail snap clip (built-into housing)
3. Green pluggable power terminal block (supplied with unit)
4. Abbreviated printed operating manual

❗ Not included: Power supply unit, Ethernet cables — must be ordered separately.

سيناريوهات التطبيق النموذجية

Industrial field-bus network expansion for PLCs, servo drives and frequency converters

8-node industrial Ethernet star / line topologies inside control cabinets

أدوات الآلة, آلات التعبئة والتغليف, معالجة المياه, material-handling equipment

دليل استكشاف الأخطاء وإصلاحها

1. Power LED off: Check DC 9-32 VDC supply polarity, terminal tightness and input voltage drop.
2. Port LED off: Damaged / mis-wired cable; peer device unpowered; abnormal port negotiation (speed cannot be forced on this unit).
3. Packet loss / poor throughput: Verify cable quality; use shielded industrial cables; ensure no condensation and temperature stays within -10~60 ℃.

Hard Constraints / العمليات المحظورة:

Not for outdoor direct exposure; IP20 for cabinet-only installation.

Do not apply supply voltage exceeding 32 VDC.

No VLAN, QoS or ring-management functions; pure plug-and-play unmanaged switch.

توصيات الاستبدال (OEM-Suggested)

1. Direct functional replacement: FL SWITCH 1008N (2701473), 8-ميناء 10/100 unmanaged DIN-rail switch. Pin-compatible and dimension-compatible; performance improved as drop-in substitute for obsolete 2891002.
2. البدائل المحلية: Advantech EKI-2528, MOXA EDS-208A-T, 8-port unmanaged industrial Ethernet switches.

اتصال فينيكس 2891002 (FL SWITCH SFNB 8TX) أداء

1. Per-RJ45 port speed: 10 Mbps / 100 Mbps auto-negotiation (10/100قاعدة-TX), الأعلى. 100 Mbit/s per port.
2. Overall switching capacity:

Switching bandwidth: 1.6 Gbps (8 ports full-duplex: 8 × 100 Mbit/s ×2)

MAC address table size: 2048 MAC addresses

Forwarding rate: 1.19 Mpps

ملحوظة: This is a Fast-Ethernet (100 M) industrial switch; جيجابت (1000 Mbps) is not supported. Ports auto-negotiate 10 M or 100 M with peer devices; Auto-MDI/X auto-detects straight-through / crossover cables.

اتصال فينيكس 2891002 (FL SWITCH SFNB 8TX) الأبعاد الميكانيكية

Housing Dimensions (excluding protruding terminals)

Additional Mounting Notes

1. Power terminal protrusion: The upper green power plug extends forward approx. 8-10 mm. Reserve extra cabinet depth; recommended minimum installed depth ≥80 mm for cabinet layout.
2. وزن: تقريبا. 400 g (0.4 kg), aluminum housing.
3. تصاعد: Standard DIN-35 rail snap-in; front-panel cut-out mounting is not supported.
4. Ingress protection: IP20; for control-cabinet installation only.

Cabinet Layout Clearance Recommendations

Left-right: Unit width 50 mm; maintain ≥10 mm clearance on both sides for cooling.

Top-bottom: Maintain ≥20 mm clearance above and below for ventilation.

عمق: With terminal protrusion considered, cabinet inner depth ≥80 mm.

Comparison with replacement FL SWITCH 1008N (2701473): identical 50 mm width, direct DIN-rail swap-out possible.

اتصال فينيكس 2891002 (FL SWITCH SFNB 8TX) VLAN Capability

❌ 802.1Q tagged VLAN is not supported. No web / serial configuration interface; purely unmanaged switch.

Key Details

1. Zero configurable features: No VLAN segmentation, port isolation, جودة الخدمة, IGMP Snooping or ring redundancy. All ports belong to one single broadcast domain. Incoming VLAN-tagged frames are forwarded transparently without tag processing; tag filtering cannot be performed.
2. Related PNE-suffixed model (Order-No. 1071800, FL SWITCH SFNB 8TX-PNE): only hardware-prioritized PROFINET / EtherNet/IP traffic; custom VLAN configuration remains unavailable.

Sourcing Guidance

If VLAN functionality is required: select Smart Managed / Managed switches, على سبيل المثال. Phoenix Contact FL SWITCH SMCS 8TX-PN (2989103), supporting 802.1Q VLAN, QoS and IGMP Snooping.

Hardware-only replacement without VLAN needs: use FL SWITCH 1008N (2701473) — also unmanaged without VLAN support, mechanically drop-in compatible.

⚠️ Hard constraint: Do not deploy this switch in architectures requiring VLAN segmentation; broadcast storms will propagate to every port.

اتصال فينيكس 2891002 (FL SWITCH SFNB 8TX) Stacking Capability

❌ Hardware stacking is not supported.

1. This is an unmanaged switch. No dedicated stacking ports, no stacking ASIC, no stacking protocol. Multiple units cannot be logically grouped as one single logical device; no unified management IP; no stacking cables are applicable.

Definition of stacking: Multiple physical switches combined logically into one managed entity via dedicated ports / البروتوكولات. This device cannot perform stacking.

✅ Cascading over regular RJ45 ports is allowed

Multiple 2891002 units may be interconnected via standard Ethernet cables to expand port count for star or line topologies.

Each unit remains fully independent; all ports share one broadcast domain.

One RJ45 data port is consumed for each cascading link. There is no firmware-enforced cascading depth limit, but industrial practice recommends maximum 4 cascaded hops to limit latency and broadcast-storm risk.

Use shielded twisted-pair industrial cables, الأعلى. 100 m per segment. Auto-MDI/X accepts straight-through or crossover cables.