Simplex 4100-6104 ES Net Network Interface Card Slot (new)

Mounts in 4100ES cabinet. Connects a 4100ES FACU, TrueSite Workstation, or Incident Commander to an ES Net Network. Supports Class B or Class X operation. Includes four built in Ethernet ports that you can install to a single slot in a 4100ES bay. Supports up to two additional media cards. You can configure ports A and C for earth fault detection.