Juniper EX9253 Hardware Manual page 14

EX9253 switch has two Routing Engines. For more information, see
page 7.
Line Cards
The EX9253 switch has two horizontal line card slots. The line cards for EX9253 switches combine a
Packet Forwarding Engine and Ethernet interfaces in a single assembly. Line cards are field-replaceable
units (FRUs) that you can install in the line card slots labeled MPC0 and MPC1 on the front panel of the
switch chassis.
Table 1 on page 5 lists the line cards available for EX9253 switches.
Table 1: Line Cards for EX9253 Switches
Model
EX9253-6Q12C
EX9253-6Q12C-M
Cooling System
The cooling system consists of four hot-removable and hot-insertable fan trays and an air filter and
provides front-to-back chassis cooling (see
Power Supplies
Power supplies for the EX9253 switch are fully redundant, load-sharing, and hot-removable and hot-
insertable FRUs. Each EX9253 switch chassis can hold up to six AC or DC power supplies. The power
Description
A line card with six built-in QSFP+
ports, each of which can house
QSFP+ pluggable transceivers and
12 built-in QSFP28 ports, each of
which can house QSFP28
pluggable transceivers
A line card with six built-in QSFP+
ports, each of which can house
QSFP+ pluggable transceivers and
12 built-in QSFP28 ports with
Media Access Control Security
(MACsec) capability, each of which
can house QSFP28 pluggable
transceivers
"EX9253 Cooling System" on page
"EX9253 Switch Configurations" on
Additional Information
"EX9253-6Q12C Line Card" on page 35
"EX9253-6Q12C-M Line Card" on page
41
21).
5