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研华BB-858-11121是一款IE多路10/100/1000 Mbps光以太网分界单元，具有多功能4端口设备和SNMP可管理，支持SFP光纤和OAM、VLAN、1+1反向
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Specifications
| Technical |
| Plug-and-Play Operation |
| 2 x RJ-45 and 2 x SFP ports (SFP sold separately) |
| IEEE 802.3u 100Base-TX, 1000Base-T over twisted pair |
| IEEE 802.3u 100Base-FX, 1000Base-X |
| Supports Jumbo Frames up to 10,240 bytes |
| Auto Negotiation, Auto-Cross for MDI/MDIX |
| Supports diagnostic LEDs |
| 1+1 uplink protection (<50 mSecs) |
| IEEE 802.3ah, IEEE 802.3ag |
| Y.1731 |
| SFP—MSA Standard |
| Environment | |
| Operating Temperature w/ AC Input | -10 to +50 °C (+14 to +122 °F) |
| Operating Temperature w/ DC Input | -40 to +85 °C (-40 to +185 °F) |
| Storage Temperature | -45 to +85 °C (-49 to +185 °F) |
| Operating Humidity | 10 ~ 95% (non-condensing) |
| MTBF | 522,644 Hours |
| Mechanical | |
| Dimensions (H x W x D) | 2.2 x 9.38 x 9.94 cm (0.86 x 3.66 x 3.86 in) |
| Weight | 0.45 kg (1.0 lb) |
| Power | |
| AC input: 100 - 240V AC, 50-60Hz, 0.48A
DC input: 48V DC |
|
| Certifications | |
| FCC Class A | |
| UL/cUL, CE | |
Ordering Information
| Part Number | Also Known As | Ethernet Speed | Optical Mode | Distance | Optical Connector | Power Adapter |
| IMC-574I-SFP | 854-11121 | 10/100/1000 Mbps | Various | Various | 2 x SFP | - |
| IMC-574I-SFP-PS | 858-11121 | 10/100/1000 Mbps | Various | Various | 2 x SFP | AC/DC Adapter, 15W @ 5V DC |
Accessories
| Part Number | Description |
| 806-39105 | DIN Rail Clip |
| 806-39720 | AC Power Adapter (10W, -10 to +50 °C) |
| 825-39951 | Serial Cable, MiniJack to DB9 (female) |
| 895-39229 | Wall-mount Bracket |
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