피닉스컨택트 2891002 산업용 이더넷 스위치

Order-No.: 2891002；Full Designation: FL SWITCH SFNB 8TX；유형: 관리되지 않음 산업용 이더넷 스위치

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

핵심사양

목	매개변수
포트	8 × RJ45, 10/100Base‑TX (10/100 Mbps auto‑negotiation)
스위칭 모드	Store‑and‑Forward, IEEE 802.3, MAC address table: 2케이
Auto‑functions	Auto‑Negotiation, Auto‑MDI/X (auto‑crossover; no crossover cable required)
전원공급장치	9‑32 VDC, nominal 24 VDC; typical 140 mA @24 VDC, 최대. 380 mA @9 VDC
설치	DIN‑rail snap‑in mounting, 알루미늄 하우징, 보호 등급 IP20
치수	W 50 mm × H 110 mm × D 70 mm
온도 범위	운영 중: ‑10 ℃ ~ +60 ℃; 저장: ‑20 ℃ ~ +85 ℃; Humidity 5‑95 %RH, 비응축
LED 표시기	Power supply US, Link/ACT and speed LED per port
맥스. Cable Length per Segment	100 m (Category 5 twisted‑pair cable)
승인	CE, UL/cULus, EAC, KC; EMC Class A (산업 환경)

Model Code Decoding

FL SWITCH: 피닉스컨택트 industrial switch series

SFNB: 관리되지 않음, compact metal housing, DIN 레일 마운트

8: 8 copper ports

텍사스: Copper twisted-pair RJ45 interface

Scope of Delivery

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

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

일반적인 애플리케이션 시나리오

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

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

공작기계, 포장 기계, 수처리, material-handling equipment

문제 해결 가이드

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

하드 제약 / 금지된 작업:

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.

교체 권장사항 (OEM-Suggested)

Direct functional replacement: FL SWITCH 1008N (2701473), 8-포트 10/100 unmanaged DIN-rail switch. Pin-compatible and dimension-compatible; performance improved as drop-in substitute for obsolete 2891002.
국내 대안: 어드밴텍 EKI-2528, 뜸쑥 EDS-208A-T, 8-port unmanaged industrial Ethernet switches.

피닉스컨택트 2891002 (FL SWITCH SFNB 8TX) 성능

Per-RJ45 port speed: 10 Mbps / 100 Mbps auto-negotiation (10/100베이스-TX), 최대. 100 Mbit/s per port.
Overall switching capacity:

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

MAC address table size: 2048 MAC 주소

Forwarding rate: 1.19 Mpps

메모: This is a Fast-Ethernet (100 M) industrial switch; 기가비트 (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.

피닉스컨택트 2891002 (FL SWITCH SFNB 8TX) 기계적 치수

Housing Dimensions (excluding protruding terminals)

목	값
너비 (여)	50 mm (horizontal cabinet dimension for DIN‑rail mounting)
키 (시간)	110 mm (vertical dimension)
깊이 (디)	70 mm (depth measured from DIN‑rail mounting face forward)

Additional Mounting Notes

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.
무게: 대략. 400 g (0.4 kg), 알루미늄 하우징.
설치: Standard DIN-35 rail snap-in; front-panel cut-out mounting is not supported.
진입 보호: 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.

깊이: 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.

피닉스컨택트 2891002 (FL SWITCH SFNB 8TX) VLAN Capability

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

Key Details

Zero configurable features: No VLAN segmentation, port isolation, QoS, 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.
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, 예를 들어. 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.

피닉스컨택트 2891002 (FL SWITCH SFNB 8TX) Stacking Capability

❌ Hardware stacking is not supported.

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 / 프로토콜. This device cannot perform stacking.

✅ Cascading over regular RJ45 ports is allowed

다수의 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, 최대. 100 m per segment. Auto-MDI/X accepts straight-through or crossover cables.