PD-9001GM - 30W Single-Port Gigabit PoE Midspan | Microchip
部品番号: PD-9001GM ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
PD-9001GM 概要
A PoE midspan, also called a PoE injector or power injector, is a device that adds electrical power to a standard Ethernet data line without replacing the network switch. Positioned between a non-PoE switch and a powered device (PD), it injects DC power onto the spare or data pairs of the Cat5e/Cat6 cable while passing 10/100/1000 Mbps data traffic transparently. Midspans sit in the power-delivery layer of the network hierarchy: Ethernet infrastructure -> PoE power sourcing equipment (PSE) -> powered devices such as access points and cameras.
Key features include 30W power output per port for high-power applications, full Gigabit (10/100/1000 Mbps) data-rate pass-through, IEEE 802.3at compliance with 802.3af backward compatibility, and automatic detection and classification of powered devices. The unit powers up the PD only when a valid 802.3af/at signature is detected, protecting non-PoE network equipment from damage.
The midspan integrates the PSE controller and a flyback power supply in one enclosure, generating the 50-57V PoE output rail from a mains AC input, with short-circuit, over-current and over-temperature protection per the IEEE standard. This avoids the cost and downtime of replacing an existing non-PoE Ethernet switch when only one or a few ports need power.
Typical applications include powering WLAN 802.11n/ac access points, IP network cameras including PTZ models, VoIP video phones and other IP terminals in enterprise, retail and surveillance installations where only one port requires PoE.
Design and deployment consideration: verify that the connected cabling is Cat5e or better and that the powered device's power class does not exceed the 30W budget; a midspan cannot combine power with a PoE switch port on the same link.
This page synthesizes verified manufacturer and distributor data, family cross-references, and deployment guidance not found on a single datasheet.
ドロップイン代替品: PD-9001GM — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PD-9001GM （同一形状・フットプリント） — 相違点: Compliance, Data Rate, Mounting, Product Type.
クイック比較ツール — 並列比較する代替部品を選択:
PD-9001GR/AT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PD-9001GI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PD-9001GS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PD-9001G/AC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PD-9001GM/AC
✅ ドロップイン✓ 在庫あり
$145 / 個
データシートを見る →PD-9001GM/AC-EU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PD-9001GM 仕様（メーカー公開）
| Product Type | Single-port PoE midspan injector |
| Output Power Per Port | 30 W |
| PoE Standard | IEEE 802.3at (backward compatible IEEE 802.3af) |
| データレート | 10/100/1000 Mbps (Gigabit) |
| Number of Ports | 1 |
| Output Voltage Range (PoE) | 50 V to 57 V |
| Supported PD Classes | 0-4 (IEEE 802.3af/at detection and classification) |
| Connectors | RJ45 data-in, RJ45 data+power-out |
| Protection Features | Over-current, short-circuit, over-temperature (IEEE 802.3at PSE protection) |
| Mounting | Desktop / wall-mountable standalone enclosure |
| Compliance | IEEE 802.3at, IEEE 802.3af |
| RoHS ステータス | unknown |
PD-9001GM インターフェースとコネクタ
PD-9001GM は、メーカーが公開している以下のインターフェースとコネクタを備えています: 電力入力。拡張ヘッダーのピン配置、コネクタのピン番号、電気的制限はメーカーのドキュメントで定義されています。
| 電力入力 | IEEE 802.3at (backward compatible IEEE 802.3af) |
詳細は メーカー資料 をご参照ください（拡張ヘッダーのピン配置とコネクタのピン番号の詳細）。
電力・熱特性
| 電力入力 | IEEE 802.3at (backward compatible IEEE 802.3af) |
メーカーが公開している PD-9001GM の電力入力および熱パラメータ。
主な用途
PD-9001GM の用途: 6 件s: WLAN Access Point Powering, IP Surveillance Cameras, VoIP and Video Phones, Non-PoE Switch Retrofit, Wireless Bridge and Outdoor Radio Links, Digital Signage and IP Terminals.
WLAN Access Point Powering
The PD-9001GM is ideally matched to powering 802.11n/ac wireless access points because its 30W IEEE 802.3at budget covers the worst-case transmit power draw of enterprise-class dual-radio APs, and its full 10/100/1000 Mbps pass-through preserves backhaul throughput. Installed between an existing non-PoE switch and the AP's Ethernet run, it performs 802.3at detection and classification before applying the 50-57V rail, so non-PoE devices on adjacent runs are unaffected. Because it injects power without replacing the switch, a single AP can be added to a ceiling location with zero network downtime; the main consideration is keeping the Cat5e/Cat6 run within the 100 m IEEE limit to limit resistive loss.
おすすめ
IP Surveillance Cameras
Network cameras, especially Pan-Tilt-Zoom (PTZ) models with heaters and motors, routinely need more than the 12.95W available from legacy 802.3af; the PD-9001GM's 30W 802.3at output covers these loads while delivering full Gigabit bandwidth for megapixel video streams. The midspan's automatic detection protects cameras during connection events, and its single-port form factor suits distributed camera deployments where only individual switch ports lack PoE. For outdoor camera runs, the related surge-protected PD-9001GR variant is worth considering; on any run, verify the camera's maximum power draw stays within the 30W budget and cabling is Cat5e or better to minimize voltage drop over the 50-57V PoE rail.
おすすめ
VoIP and Video Phones
Video phones and business VoIP endpoints are classic midspan loads: offices often have functioning non-PoE switches, and retrofitting power to a single desk is cheapest with a one-port injector. The PD-9001GM provides IEEE-compliant detection and classification so a standard 802.3af phone draws only its class-appropriate power, while a class 4 video phone receives up to 30W under 802.3at. Data transparency at 10/100/1000 Mbps means voice quality and PC-pass-through ports on the phone operate exactly as on a direct switch connection. Deployment is plug-and-play with no configuration, and the compact enclosure sits unobtrusively at the desk or wiring closet.
おすすめ
Non-PoE Switch Retrofit
The primary architectural role of the PD-9001GM is retrofitting PoE onto an installed base of non-PoE Ethernet switches. Rather than forklift-upgrading a working switch, the midspan is inserted on just the links that need power, preserving the existing switching investment and avoiding configuration migration. Its Gigabit pass-through means the retrofit is invisible to data traffic, and 802.3at/af auto-detection means the port remains safe for non-PoE devices during troubleshooting. This approach scales one port at a time, which is cost-effective when only a few endpoints need power; when more than roughly 8-12 ports require PoE, a PoE switch usually becomes the more economical and manageable option.
おすすめ
Wireless Bridge and Outdoor Radio Links
Point-to-point wireless bridges and outdoor radio units commonly accept 802.3at power and require Gigabit throughput, making the PD-9001GM a fit for rooftop and tower installations fed from an indoor non-PoE switch. The 30W budget covers most licensed-exempt bridge radios, and the 100 m cable reach reaches typical rooftop equipment rooms. In exposed installations, surge protection on the cable run becomes critical; for those cases Microchip's PD-9001GR variant with surge protection is the recommended family member. Always mount the midspan indoors or in a weatherproof enclosure, and verify the radio's outdoor temperature specification separately from the injector's.
おすすめ
Digital Signage and IP Terminals
Small digital-signage players, IP intercoms, printers, and other 802.3at-class IP terminals can be powered over their single Ethernet drop with the PD-9001GM, eliminating local AC adapters and outlet costs at each endpoint. The 30W budget covers the majority of thin signage clients and PoE+ intercoms, while the Gigabit data path supports streaming content without bottlenecking. Because the midspan performs standard detection and classification, mixed fleets of 802.3af and 802.3at terminals can share the same deployment pattern safely. Planning should confirm each terminal's class, keep runs under 100 m on Cat5e or better, and reserve local AC for any device exceeding the 30W PoE+ ceiling.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PD-9001GM — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PD-9001GR/AT | PD-9001GI | PD-9001GS |
|---|---|---|---|---|
| Brand | Microchip Technology (PowerDsine) | Microchip Technology (PowerDsine) | Microchip Technology (PowerDsine) | Microchip Technology (PowerDsine) |
| Package | Standalone single-port midspan enclosure | Standalone single-port midspan enclosure - same class | Industrial standalone single-port enclosure | Standalone single-port midspan enclosure - same class |
| Output Power Per Port | 30 W | 30 W | 30 W | 30 W |
| PoE Standard | IEEE 802.3at (802.3af backward compatible) | IEEE 802.3at (802.3af backward compatible) | IEEE 802.3at (802.3af backward compatible) | IEEE 802.3at class |
| Number of Ports | 1 | 1 | 1 | 1 |
| Environment Grade | Commercial / standard installation | High-power / protected environments | Industrial | Commercial (current-generation) |
| Lifecycle Position | Active (compact cost-effective option) | Active (Microchip suggests PD-9001GS for new designs) | Active | Active (recommended for new designs) |
主な差別化要因
- Compact, cost-effective single-port form factor （vs PD-9001GR/AT)
- Full Gigabit pass-through with 30W PoE+ （vs Legacy 2-pair 802.3af midspans)
- 802.3af backward compatibility with safe detection （vs PD-9001GI (industrial variant))
- Honest trade-off: superseded positioning for new designs （vs PD-9001GS)
設計ノート
Budget the load strictly: the PD-9001GM supplies up to 30W at the PSE side under IEEE 802.3at; cable resistance on long runs means the powered device may receive somewhat less. Verify the endpoint's nameplate maximum draw and power class (0-4) before deployment. Do not chain the midspan behind a PoE switch port - two PSEs on one link violate the standard and can damage equipment. Estimated: a 100 m Cat5e loop carries roughly 12.5 ohms round-trip, dropping about 1.5V at 0.6A load, so the PD sees a lower rail than the nominal 50-57V output.
Three frequent midspan mistakes: (1) using Cat5 or degraded patch cable, which breaks 1000BASE-T negotiation and adds PoE loss - always use Cat5e or better; (2) exceeding the 100 m IEEE channel length, causing detection failure or intermittent power cycling of the PD; (3) omitting verification that the PD actually supports 802.3at class 4 - an 802.3af-only device will still power but be limited to its class wattage. Also note the regional AC-cord variants (/AC and /AC-EU) differ only in the mains cord, not electrical function.
As a boxed standalone unit, no PCB design work is required, but installation planning matters: mount the midspan in a ventilated location away from heat sources since the internal flyback supply dissipates heat at full 30W load; allow clearance around the enclosure per the user guide. For outdoor-fed runs, prefer the surge-protected PD-9001GR family variant or add external surge protection on the cable, and ground the installation per building electrical code.
コンプライアンス情報
IEEE 802.3at and IEEE 802.3af compliance confirmed from Microchip documentation. RoHS/REACH status not stated in the provided sell-sheet data.