Máy chủ (4-port device servers with managed Ethernet switch) - Moxa

Model: NPort S8458-4S-SC-T

Features and Benefits:

• 4-port RS-232/422/485 serial device server

• Serial QoS for configuring serial data transmission priority

• 2 kV isolation protection for each serial port (S8455I only)

• Adjustable pull high/low resistor for RS-485 ports (S8455I only)

• Built-in managed Ethernet switch

• S8455I fiber models: 2 fiber Ethernet ports and 3 Ethernet ports

• S8455I all-copper models: 5 Ethernet ports

• S8458 models: 4 fiber Ethernet ports and 4 Ethernet ports

• Ethernet redundancy with Turbo Ring and Turbo Chain (recovery time < 20 ms) or RSTP/STP (IEEE 802.1w/D) supported

• QoS, IGMP-snooping/GMRP, VLAN, LACP, SNMPv1/v2c/v3, RMON supported

• Surge protection for serial, Ethernet, and power