zyxel_gs1920_series

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zyxel_gs1920_series [2020/10/20 20:28]
svanheule [GS1920-24HP]
zyxel_gs1920_series [2021/01/01 16:54]
svanheule [GS1920-24HP] Add GPIO details
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 The GS1920 series is a line of managed gigabit ethernet switches. Two revisions exist, but both are built with Realtek hardware. The GS1920 series is a line of managed gigabit ethernet switches. Two revisions exist, but both are built with Realtek hardware.
  
-^ Switch name ^ RJ45 ports ^ Combo SFP ports ^ Dedicated SFP ports ^ PoE ports ^ +^ Switch name ^ RJ45 ports ^ Combo SFP ports ^ Dedicated SFP ports ^ PoE ports ^ SoC 
-| GS1920-24 | 28 | 4 | - | - | +| GS1920-24 | 28 | 4 | - | - | RTL8392M 
-| GS1920-24HP | 28 | 4 | - | 24 | +| GS1920-24HP | 28 | 4 | - | 24 | RTL8392M 
-| GS1920-48 | 48 | 4 | 2 | - | +| GS1920-48 | 48 | 4 | 2 | - | RTL8393M 
-| GS1920-48HP | 48 | 4 | 2 | 48 | +| GS1920-48HP | 48 | 4 | 2 | 48 | RTL8393M 
-| GS1920-8HPv2 | 10 | 2 | - | 8 | +| GS1920-8HPv2 | 10 | 2 | - | 8 | RTL8391M 
-| GS1920-24v2 | 28 | 4 | - | - | +| GS1920-24v2 | 28 | 4 | - | - | RTL8391M 
-| GS1920-24HPv2 | 28 | 4 | - | 24 | +| GS1920-24HPv2 | 28 | 4 | - | 24 | RTL8391M 
-| GS1920-48v2 | 48 | 4 | 2 | - | +| GS1920-48v2 | 48 | 4 | 2 | - | RTL8393M 
-| GS1920-48HPv2 | 48 | 4 | 2 | 48 |+| GS1920-48HPv2 | 48 | 4 | 2 | 48 | RTL8393M |
  
 ===== Models ===== ===== Models =====
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   * PoE controller: STM32F100   * PoE controller: STM32F100
   * PoE PSE: 6× BCM59111   * PoE PSE: 6× BCM59111
-  * GPIO: 4× RTL8231+  * GPIO: 
 +    * 1× [[RTL8231]] as GPIO expander: I2C mode, device ID 0x3 (bus address 0x53), 8-bit register address width. 
 +    * 3× RTL8231 as shift register: port status LEDs
     * HC164 shift register for device status LEDs     * HC164 shift register for device status LEDs
-  * 3× DC-fan with RPM control+  * ADT7468 (I2C/SMBus) thermal controller with 3× 3-pin fan
   * Sipex SP3232 RS-232 transceiver   * Sipex SP3232 RS-232 transceiver
 +
 +The serial port header J2 uses the standard [[https://en.wikipedia.org/wiki/Serial_port#Pinouts|DCE pinout]], with TX/RX on pins 2 and 3, and ground on pin 5. Port settings are 9600 baud, 8n1, with ±5.6V logic levels.
 +
 +The PoE management MCU and the ADT7468 fan controller are on a shared I2C bus. The PoE MCU is at address 0x20, while the fan controller is at (fixed) address 0x2E.
  
 === Photos === === Photos ===
 ^ Board ^ Pictures ^ ^ Board ^ Pictures ^
 | Overview | {{:wiki:zyxel:gs1920-24hp-front.jpg?200|device front}} {{:wiki:zyxel:gs1920-24hp-overview.jpg?200|inside overview}} | | Overview | {{:wiki:zyxel:gs1920-24hp-front.jpg?200|device front}} {{:wiki:zyxel:gs1920-24hp-overview.jpg?200|inside overview}} |
-| Main board | {{:wiki:zyxel:gs1920-24hp-main.jpg?200|main board overview}} {{:wiki:zyxel:gs1920-24hp-main-soc-memory.jpg?200|main board SoC and memory}} {{:wiki:zyxel:gs1920-24hp-main-gpio.jpg?200|main board GPIOs}} {{:wiki:zyxel:gs1920-24hp-main-serial-sfp.jpg?200|main board serial port and SFP cages}} {{:wiki:zyxel:gs1920-24hp-main-back.jpg?200|main board backside}} | +| Main board | {{:wiki:zyxel:gs1920-24hp-main.jpg?200|main board overview}} {{:wiki:zyxel:gs1920-24hp-main-soc-memory.jpg?200|main board SoC and memory}} {{:wiki:zyxel:gs1920-24hp-main-gpio.jpg?200|main board GPIOs}} {{:wiki:zyxel:gs1920-24hp-main-fan.jpg?200|main board fan control}} {{:wiki:zyxel:gs1920-24hp-main-serial-sfp.jpg?200|main board serial port and SFP cages}} {{:wiki:zyxel:gs1920-24hp-main-back.jpg?200|main board backside}} | 
-| PoE daughter board | {{:wiki:zyxel:gs1920-24hp-poe-detail.jpg?200|PoE controller ICs}} {{:wiki:zyxel:gs1920-24hp-poe-back.jpg?200|PoE board backside}}  |+| PoE daughter board | {{:wiki:zyxel:gs1920-24hp-poe.jpg?200|PoE board}}  {{:wiki:zyxel:gs1920-24hp-poe-detail.jpg?200|PoE controller ICs}} {{:wiki:zyxel:gs1920-24hp-poe-back.jpg?200|PoE board backside}}  |
  • zyxel_gs1920_series.txt
  • Last modified: 2021/01/01 21:44
  • by svanheule