Juniper SRX345 Hardware Guide

CHAPTER 4
Cooling System Description
•
Understanding the SRX345 Services Gateway Cooling System on page 13
Understanding the SRX345 Services Gateway Cooling System
The cooling system for the SRX345 Services Gateway includes four fixed fans. The fans
draw air through vents on the front of the chassis and exhaust the air through the back
of the chassis. The airflow produced by the fans keeps device components within the
acceptable temperature range.
Figure 7 on page 13 shows the airflow through the SRX345 Services Gateway chassis.
Figure 7: Airflow Through the SRX345 Services Gateway Chassis
Related
Documentation
• SRX345 Services Gateway Chassis Overview on page 5
• Understanding the SRX345 Services Gateway Front Panel on page 5
13Copyright © 2017, Juniper Networks, Inc.

Juniper SRX345 Specifications

General

USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	8
Flash memory	8000 MB
Internal memory	4000 MB
Certification	FCC A, RoHS 2
Rack capacity	1U
Heat dissipation	420 BTU/h
Power consumption (typical)	122 W
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Routing protocols	BGP, CLNS, MPLS, OSPF, RIP-1, RIP-2
Supported network protocols	IPv4, IPv6
Firewall security	Yes
Security algorithms	IPSEC, SSL/TLS
Networking standards	IEEE 802.1p
Ethernet LAN data rates	10, 100, 1000 Mbit/s

Weight and Dimensions

Weight	4900 g
Dimensions (WxDxH)	440.9 x 370.1 x 43.6 mm