สวัสดีครับ อุปกรณ์ที่มาแกะให้ดูวันนี้คือ Cisco SG300-10 เป็น Management Switch ครับ
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMOCFPyr_fM96UMako_lDOJnKYobBV4_M-zoBlqhHjK7KWqAZmKY4Nob5BnoujoAxZCKv0csZUrY_P-OngssrP8MxJgDTMplU8mU1OHO47Dah4Nrgsfjoft-uXnEd1PtuhxrS1mppUvqdGNUCRcSkufx4JttoE3bLDDUB7b5bQmtvnbdIkBgZ-iXb5Xw/w400-h300/1.jpg) |
ตัวเครื่อง |
ตัวเครื่องมีพอร์ต 10/100/100 จำนวน 8 พอร์ต และพอร์ต Combo จำนวน 2 พอร์ต
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBMe8Jy2vx2uTWtXFWsew3PYQGliZ9e-K7uptLJIlqR4uA5bdGSX7rfwl5vhqEfVjPlcMW4QTO1Wmt8x-bibLy-GVp7pvcJpR_k3ySZ5LS7I5qUxqXmBAnqnkh01l4OJeAwgDnOcKTgQwfOhvXZwv1l2t3IQDsHIRb-snP8X5awuLywz30X0hPMO445Q/w400-h300/2.jpg) |
PCB |
แกะตัวเครื่องจะเจอแผงวงจร 1 แผงมีชิพหลายๆ ตัวดังนี้
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIxHHKwZr1ir2bsvYJAgzYZElkn7Hav8wFDrCgOIdBy5jAsTaOe_Vm80wKSkZ0ctuM5YZDfcuf05E9rmSkPVhIL0luPqeKyAYaNIqGZScUwkXusBMW943n6Wrg1D3QYWenpQgXXZBwGlwQ3sqf_YjuPX_ZafKtOjTSLDjh2w86AuHgTT7hJ4xh7QRqHQ/w400-h300/3.jpg) |
ชิพต่างๆ |
ชิพแต่ละตัวมีคุณสมบัติคร่าวๆคือ
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_XzUpQcgDcD6bcmX-UrWUGdwLARdVIPN7rTQIR-q88SIH53vz7j3e6lWRbKZ1X3SphfXySDjYVjE_NXCt8_cTSMdc89WjzgCdfPSw8F1SlHrCI32GaGyiGfcxoxcXYw4dEodab2IigW7BYfLpO7a6WtiG9MmkmOqc-qg2MSXH-7ZE6lRk7ijdgviJvQ/w400-h314/3.1.jpg) |
MP2307DN |
MPS MP2307DN-> 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5UeDsh9re2sPb_0H6ZfPbUbo9woBdl_e7eS3W4JZATUE7XFrsXMhzgcA2Da002tTYurq8T6AX2u1ONHE11kd_YX_ahTnoRjbwwJU-6p51EfRNykmbLrb1-6rLkLjHzzBCZ7yPZmf_xhsVcoG00vHUoD9GVjFoaLrEDGPn_51h7wZ2ydyE-ebHxCJ9Iw/w400-h338/3.10.jpg) |
CM3407DS |
MPS CM3407DS -> Step-Down Converter
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsONd5TAqgeEWtvgTNsjnnt15nNvvB2iiLeVAkZOMQv1lnKQKMI24Bs80ZG0hUqNCDRoeXAc4QmQUm0FNuFG7JfkWRd06R-BJSHyVDTZZ-qk0wW0gV2yiL2A8A3aUdFB3slBcegS_D82jnDZJ2Ed_pswQf6qZzVjJtFDMLz9GJyblU6IJ50EBe3B1VZA/w400-h329/3.2.jpg) |
MA3221C |
TI MA3221C -> 3-V to 5.5-V RS-232 Line Driver and Receiver
With ±15-kV ESD Protection
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPvNLNxVVFiDwiIslHOUp0zP-SFSvFGxixWL-yTKFnUjIIWouyjlX0_BGbAmJgZsCulPk8SZ3AAoIDJSprBUZ_tN6vP73P-BCmfF16BCWGr4U3SPpLZK-_TMAWbokZ-I6IxdyBVXSPV06wRBRs8jkcsdlMActhaDF-MOv2SVMN_OEqJ4uiHEay1BofuQ/w400-h316/3.3.jpg) |
MX25L12845EMI |
MXIC MX25L12845EMI -> 128M-BIT [x 1/x 2/x 4] CMOS MXSMIO (SERIAL MULTI I/O) FLASH MEMORY
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-Rs4O84axP6n7yFsDl7bD9Qjmm-eso8rmHM__UzRFhCLqxVH2CuDVV3Ls7HODjhH5dsYVYa-9lOCAnm_NC5HPJZ-2JvjpKFYHPbWaQ-D3xNdrUILwU1-_KqxnIahFMdj5tpref5EVHTb03WKMw-YnhZfhoLS5VYeNG_95DQj8PiOTI1ItjtHK11Le1g/w400-h309/3.4.jpg) |
LVC32A |
TI 74LVC32A -> QUADRUPLE 2-INPUT POSITIVE-OR GATES
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiCtI4Hg-Xpbhaz85DJXDETjVl-3ZRRhEfifofK8TqIyIvaQyDtKCOLPzisIa6YAo26l8BnWnLk-Bffa6pR5bban8FueBKQoGizJQqqTaPWeW-wMH9zKBDK4mmeXIEgORYiyjOq26PmG0U-O9UhoQeL-n795CNMnQr8cEB2QfnnYisY3TLmqABbZrZkow/w400-h344/3.5.jpg) |
H5PS1G63KFR |
SKhynix H5PS1G63KFR -> QUADRUPLE 2-INPUT POSITIVE-OR GATES
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijZYiX9FQif5xYmJwwpMjrIXGPYxyx4FhA5eC4JjcCnALfFt-B7sfLC8ZQ-eX9PtBFKP3eOLFvRnkvYtE59yA5jGZ4tAJxh2X7-TMhQFvLBn6fGAdxeaw04M79HCJTiy4LeKirGfIZLAw_T5FO1kJz6Gk5LkZbZv3iMeTwnLgi74opubPsVYNxA0rRow/w400-h328/3.6.jpg) |
VB244 |
TI VB244 -> OCTALBUFFER/DRIVERWITH3-STATEOUTPUTS
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiX3ZhxTPlm70365nQksiP-W9nWvc7C-l_54hiWyynFci2imnRjkjgHSzskwyNK7m4qBfw7w20cQUeiMK103awT1xKi-T7jxAhpRESpW6wgpCdWK547RsVVHz2BrR2mYNXLdokex6GzS06N5mjU9WtAebQA2WBOtlkAGEeIx0r05BrP1q3t2giM7T0jTA/w400-h275/3.7.jpg) |
98DX-BIH2 |
Marvell 98DX-BIH2 -> Marvell 98DX3033A1 = SoC
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhs-5A2Lx5eRSffig-qMeFXQdITtjVBna7JAJPEmGyG9zNM76x9XuSDQjFpxOwCu1KtyS46kZ2D2QmsJURNk9zaUMFVeImiwYdNSDlroX9UMHJiu2AO7GIPicbaa3OC4CMZJUZElmfQZu8TzcM0uPyamzyMmHt1q5E5X1laY3OXlkRzSnQcQJiutXY2ew/w400-h318/3.8.jpg) |
F8313 |
IRF8313 -> HEXFET Power MOSFET
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilMd4mjotlKh1sUdEf0ay7iB_mSCSebCjVC4pFoF75oT0AIU-2MrNJty4TcFsXxhUpHJSPv1s96obGnitO21f9tBjtHPCiC1ulRKR1yNH_uG5nKbg4DjsRSqT-gO0qtRUqzTiYXlKS0Pg9HUwCz-ulP9LPUmnHq16hc29B9drgKfwi3lbgbpMYO7Tuag/w400-h344/3.9.jpg) |
RT8105 |
Richtek RT8105 -> 5V/12V Synchronous Buck PWM DC-DC Controller
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJtIVXRz5DP4LVv7uttHr8Fa3cPXaoGPzsFXf50qv32lTPwOm2_lddlLQLDknGDFDoY2o3BShBgZmVP31lDpsgl3mcIXs8rYiiywoyQlpJucinNyO-JBBgxioLm3OcpDvB87DIxYuPfobwq6AqxTz9jZNrlzbbG_4BvIsjCZrohCkUUCMxhHmyDidGkg/w400-h321/3.11.jpg) |
88E1543 |
Marvell 88E1543 -> Dual-port SGMII (System) to Copper/SGMII/Fiber with AutoMedia
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOV7sZe05pTSdh4ssja2a4bSHgThZcRvaQfoCc8VY_wa-e_jC_ovn30DBi0rQDzRIVIBEF2dzkOGTwYi6HWLrT9VmaMv_0-5rTbTJdVKWm92_Z-6JfKIX_BS0dIdRCRTAKI4g4crQMmiCabiP4bRvWfw6ixwDpHpOOua8iCS5uwnFdTxsmvNGBhvY5-Q/w400-h344/3.12.jpg) |
88E1545 |
Marvell 88E1545 -> Quad Port 10/100/1000 Mbps Energy Efficient Ethernet Transceivers
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpDAxhjbBE43v2c7HtbCJsNCOK1YoPerAqcQRJQoRb-yS7Xov82rAiIJrzl7jLi5nO_L91hAUc1mTeblEuMlhCCjJAoILvPZ6FrlIajtFAoqN-PaBKb8TilNPTOlbfFMtvtlsiIyzzkGIuQz3hflPoHfLgvjCynjfmUcrt9asdVrD0smCWDEnioAN2JA/w400-h300/4.jpg) |
PCB ด้านล่าง |
PCB ด้านล่างไม่มีชิพ
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