# (c) 2026 NetBox Labs, Inc.
# Licensed under the NetBox Limited Use License v1.0
# https://netboxlabs.com/ndx/license
# Community DTL portions licensed under Apache 2.0:
# https://github.com/netbox-community/devicetype-library
---
manufacturer: Schweitzer Engineering Laboratories
model: SEL-3555
slug: schweitzer-engineering-laboratories-sel-3555
part_number: SEL-3555
u_height: 2
is_full_depth: true
weight: 9.5
weight_unit: kg
comments: Intel Core i7 2.5 GHz dual-core or 2.1 GHz quad-core; up to 10 independent
  Ethernet ports or 26 serial ports (via expansion); HMI/video port; redundant PSU;
  1 ms deterministic cycle; -40 to +85C; fastest SEL RTAC platform
interfaces:
- name: Ethernet 1
  type: 1000base-t
  label: Rear GbE
- name: Ethernet 2
  type: 1000base-t
  label: Rear GbE
- name: Ethernet 3
  type: 1000base-t
  label: Rear GbE
- name: Ethernet 4
  type: 1000base-t
  label: Rear GbE
- name: Front Ethernet
  type: 100base-tx
  label: Front Ethernet
- name: Serial 1
  type: other
  label: EIA-232/485
- name: Serial 2
  type: other
  label: EIA-232/485
- name: Serial 3
  type: other
  label: EIA-232/485
- name: Serial 4
  type: other
  label: EIA-232/485
- name: Serial 5
  type: other
  label: EIA-232/485
- name: Serial 6
  type: other
  label: EIA-232/485
- name: Serial 7
  type: other
  label: EIA-232/485
- name: Serial 8
  type: other
  label: EIA-232/485
- name: Serial 9
  type: other
  label: EIA-232/485
- name: Serial 10
  type: other
  label: EIA-232/485
- name: IRIG-B Input
  type: other
  label: IRIG-B time sync (BNC)
- name: IRIG-B Output
  type: other
  label: IRIG-B output (BNC)
- name: HMI Video
  type: other
  label: HMI/Video display port
console-ports:
- name: Front Console
  type: de-9
  label: EIA-232 Front Console
- name: USB Console
  type: usb-b
- name: USB 1
  type: usb-a
  label: Front USB
power-ports:
- name: Power Supply A
  type: dc-terminal
  maximum_draw: 100
  description: 125-250 Vdc or 110-240 Vac, hot-swap
- name: Power Supply B
  type: dc-terminal
  maximum_draw: 100
  description: 125-250 Vdc or 110-240 Vac, hot-swap (redundant)
description: High-Performance Real-Time Automation Controller (RTAC)
