Show pageOld revisionsBacklinksFold/unfold allBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Cisco SG220 / SF220 Series ====== ===== Models ===== ^ Model ^ SoC ^ PoE ^ Comment ^ | SG220-26 | [[rtl838x|RTL8382M]] | | | | SG220-26P | [[rtl838x|RTL8382M]] | ✓ | | | SG220-50 |[[rtl83xx|RTL8393M]] | | | | SG220-50P | [[rtl83xx|RTL8393M]] | ✓ | | | SF220-24 | [[8332m|RTL8332M]] | | 10/100 ports only | | SF220-24P | [[8332m|RTL8332M]] | ✓ | 10/100 ports only | | SF220-48 | [[8353m|RTL8353M]] | | 10/100 ports only | | SF220-48P | [[8353m|RTL8353M]] | ✓ | 10/100 ports only | All models share the same firmware image. The image format is the same as the ''bix'' format, used by the [[gs1900 | Zyxel GS1900 series]] switches. ==== SG220-26(P) ==== The SG220-26 and SG220-26P appear to use the same board, although some components related to the PoE management are missing on the SG220-26's main board * [[rtl838x|RTL8382M]] * 2× RTL8218B PHYs * RTL8214FC SFP PHY * [[RTL8231]] GPIO expander * 1× MIIM mode (virtual MIIM, address 31) * 2× Shift register mode (LED_CLK, LED_DAT) * Winbond W631GU8MB (128MiB DDR3 SDRAM) * Macronix MX25L25635F, Winbond 25Q256FVFG (32MiB SPI flash) * Sipex SP3232, ADM3202 RS-232 transceiver === GPIO === * Internal GPIO: * gpio1: active low, SoC reset * gpio2: MDC line to RTL8231 * gpio3: MDIO line to RTL8231 * RTL8231 @ phy address 31: * gpio0-4: device ID * gpio5-6: device hardware revision * gpio27: reset button * gpio16: watchdog state (active low) * gpio34: (unknown, maybe watchdog related, initialised to 1) * gpio9: watchdog feed (10s) * gpio24: SFP25 "OE" (MOD_DEF0?, used to detect module) * gpio11: SFP25 loss of signal (used to detect media change)/ * gpio17: SFP25 transmit disable * gpio28: SFP26 "OE" (MOD_DEF0?) * gpio12: SFP26 loss of signal * gpio18: SFP26 transmit disable * gpio15: SCK for SFP25, SFP26, TERM1, TERM2, FAN1, FAN2 (shared I2C clock) * SDA lines: * gpio13: SFP25 * gpio14: SFP26 * gpio29: TERM1, TERM2 (26P only) * gpio31: FAN1 (26P only) * gpio33: FAN2 (26P only) === LED === All LEDs are controlled by the port LED peripheral: * Ports 1-24: Green Link/Act LED (idx 0), amber PoE LED (idx 1) (26P only) * Ports 25-26: Green Link/Act LED (idx 0), green gigabit LED (idx 1) * Green status LED: user controlled LED for port 27, index 1 * Amber status LED: user controlled LED for port 28, index 1 The green and amber device status LEDs are wired in anti-parallel, and only one can be enabled at a time. === Environment === Present only on the SG220-26P. * FAN1: TC655 at 0x1B. Does not appear to be present on SG220-26P. * FAN2: TC655 at 0x1B. The TC655 controls both fans behind the PSU of the SG220-26P. * TEMP1: LM75A at 0x49 * TEMP2: LM75A at 0x4B === JTAG === The JTAG header uses the MIPS eJTAG pin-out, with pin 12 (key) bound to ground. * J4.1 TRST#: 1k pull-down * J4.3 TDI: 10k pull-up * J4.7 TMS: 10k pull-up * J4.9 TCK: 10k pull-up * J4.11 SRST#: 10k pull-up +-J4-----+ TRST# | 1 2 | GND TDI | 3 4 | GND TDO | 5 6 | GND TMS | 7 8 | GND TCK | 9 10 | GND SRST# | 11 12 | GND N/C | 13 14 | VCC +--------+ === Board pictures === ^ Board ^ Pictures ^ | SG220-26P overview | {{wiki:cisco:sg220-26p-overview.jpg?200|SG220-26P overview}} | | SG220-26 main board | {{wiki:sg220-26-top.png?200|SG220-26 main top}} | | SG220-26P main board | {{wiki:cisco:sg220-26p-main-top.jpg?200|SG220-26P main top}} {{wiki:cisco:sg220-26p-main-bottom.jpg?200|SG220-26P main board backside}} {{wiki:cisco:sg220-26p-main-detail-1.jpg?200|SG220-26P detail: flash, RAM, DC/DC}} {{wiki:cisco:sg220-26p-main-detail-2.jpg?200|SG220-26P I/O, SFP phy}} | | SG220-26P PoE daughter board | {{wiki:cisco:sg220-26p-daughter-poe-top.jpg?200|SG220-26P PoE board}} {{wiki:cisco:sg220-26p-daughter-poe-bottom.jpg?200|SG220-26P PoE board backside}} {{wiki:cisco:sg220-26p-daughter-poe-detail.jpg?200|SG220-26P PoE management chip}} | | SG220-26P I/O daughter board | {{:wiki:cisco:sg220-26p-daughter-io-top.jpg?200|SG220-26P I/O daughter board}} {{:wiki:cisco:sg220-26p-daughter-io-bottom.jpg?200|SG220-26P I/O daughter board backside}} | | SG220-26P serial daughter board | {{:wiki:cisco:sg220-26p-daughter-serial-top.jpg?200|SG220-26P serial port daughter board}} {{:wiki:cisco:sg220-26p-daughter-serial-bottom.jpg?200|SG220-26P serial port daughter board backside}} | ===== References ===== * [[https://www.cisco.com/c/en/us/products/switches/small-business-220-series-smart-plus-switches/index.html | Product page]] * [[https://software.cisco.com/download/home/284973399/type/284971397 | Series firmware download page]] * [[GPL source drops | GPL source code]] {{tag>jtag}} cisco-sx220.txt Last modified: 2022/08/24 23:21by raylynnknight