System Overview - Juniper MX204 Hardware Manual

System Overview

The MX204 router is compact and one rack unit (1 U) tall. Several routers can be stacked in a single
floor-to-ceiling rack for increased port density per unit of floor space.
The MX204 router is a fixed-configuration router, and supports one built-in Routing Engine. The router
runs on AC or DC power, with two dedicated power supply modules on each device. Cooling is handled
by three fan modules.
The MX204 has four rate-selectable ports that can be configured as 100-Gigabit Ethernet ports or 40-Gigabit
Ethernet ports, or each port can be configured as four 10-Gigabit Ethernet ports (by using a breakout
cable). The MX204 also has eight 10-Gigabit Ethernet ports. The four rate-selectable ports support QSFP28
and QSFP+ transceivers, whereas the eight 10-Gigabit Ethernet ports support SFP+ transceivers.
Figure 1 on page 22 shows the front view of the MX204 router.
Figure 1: Front View of the MX204 Router
The MX204 router is a fixed-configuration router, and supports one built-in Routing Engine. The router
runs on AC or DC power, with two dedicated power supply modules on each device. Cooling is handled
by three fan modules. Table 3 on page 22
Table 3: MX204 Router Components
Component
Power supply module
Fan module
shows the components supported on the router.
Description
2
3
22