Cisco Catalyst 9400 Series User Manual

Grounding wire with heat-shrink sleeve2Lug secured with the two nuts1
Step 6 Attach the four DC-input power source cables similarly.
When facing the terminal block, the circuits are in the following order from left to right: negative (- A), positive
(+A), positive (+ B), and negative (-B).
-A and +A form one DC input, and + B and -B form another. Each DC input can be powered either from
separate sources, or a suitable single source.
Cisco Catalyst 9400 Series Switches Hardware Installation Guide
122
Removing and Replacing FRUs
Connecting the DC-Input Wires

Cisco Catalyst 9400 Series Specifications

General

Series	Catalyst 9400 Series
Form Factor	Rack-mountable
Operating System	Cisco IOS XE
Uplink Options	40G and 100G uplinks
Stacking	Not supported
Layer Support	Layer 2 and Layer 3
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5% to 90% noncondensing
Power Supply Options	AC and DC power supplies
Redundancy	Power supply, supervisor engine
Modular Slots	7 or 10
MAC Address Table Size	256, 000
Security Features	ACLs, TrustSec, MACsec
Management	CLI, SNMP, NETCONF, RESTCONF, Cisco DNA Center