4*RS-232/422/485, 3* Tx,2*MM

Moxa 4 RS-232/422/485 ports, 3 10/100M Ethernet ports, 2 100M multi-mode fiber ports with SC connector, 15 KV ESD, 12-48 VDC, -40 to 75°C

• 4-port RS-232/422/485 serial device server
  • Serial QoS for configuring serial data transmission priority
  • 2 kV (DC) isolation protection for each serial port (S8455 only)
  • Adjustable pull high/low resistor for RS-485 ports (S8455 only)
• Built-in managed Ethernet switch
  • S8455: Two fiber Ethernet ports and three Ethernet ports
  • S8458: Four fiber Ethernet ports and four 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, power, and Ethernet