Overview
The ER-400 is a 4-port Ethernet coaxial repeater that complies with IEEE 802.3 10Base-2 and 1OBase-5 standard. With 4 BNC
and 4 AUI ports on-board, ER-400 can be configured to connect up to 4 Ethernet Thin or Thick line segments by jumper
settings on each port. With the appropriate external transceivers, ER-400 can also be connected to 1OBASE-T or Fiber Optic
network as well. 3 LEDs are available for each to monitor line activity and troubleshooting.

Key Features
-Complies with IEEE 802.3 Ethernet standard at 1OMbps transfer rate
-Provides 2 types of connections: Thin Ethernet for BNC port Thick Ethernet for AUI port
-Selection of Thin or Thick Ethernet cable media on each port
-3 diagnostic LEDs available for each port
-Auto-partition
-Auto-reconnection
-Automatic traffic detection
-Automatic data packet fragment extension
-Automatic preamble regeneration