---
manufacturer: Ciena
model: 3942 AC
slug: ciena-3942-ac
part_number: 170-3942-900
u_height: 1
is_full_depth: false
front_image: true
airflow: front-to-rear
weight: 4.5
weight_unit: kg
console-ports:
  - name: CONSOLE
    type: rj-45
power-ports:
  - name: PSA
    type: iec-60320-c14
    maximum_draw: 96
    allocated_draw: 60
  - name: PSB
    type: iec-60320-c14
    maximum_draw: 96
    allocated_draw: 60
interfaces:
  - name: '1'
    type: 1000base-t
  - name: '2'
    type: 1000base-t
  - name: '3'
    type: 1000base-t
  - name: '4'
    type: 1000base-t
  - name: '5'
    type: 1000base-t
  - name: '6'
    type: 1000base-t
  - name: '7'
    type: 1000base-t
  - name: '8'
    type: 1000base-t
  - name: '9'
    type: 1000base-t
  - name: '10'
    type: 1000base-t
  - name: '11'
    type: 1000base-t
  - name: '12'
    type: 1000base-t
  - name: '13'
    type: 1000base-t
  - name: '14'
    type: 1000base-t
  - name: '15'
    type: 1000base-t
  - name: '16'
    type: 1000base-t
  - name: '17'
    type: 1000base-t
  - name: '18'
    type: 1000base-t
  - name: '19'
    type: 1000base-t
  - name: '20'
    type: 1000base-t
  - name: '21'
    type: 10gbase-x-sfpp
  - name: '22'
    type: 10gbase-x-sfpp
  - name: '23'
    type: 10gbase-x-sfpp
  - name: '24'
    type: 10gbase-x-sfpp
  - name: MGMT
    type: 1000base-t
    mgmt_only: true