Maintenance (OAM) capabilities, and an open software development kit (SDK) system that enables
providers to customize and integrate operations with their own management systems. For a list of
related Junos OS documentation, see
https://www.juniper.net/documentation/software/junos/
As part of the mobile backhaul, an ACX Series router at the cell site and an MX Series router at the
aggregation layer provide comprehensive end-to-end Ethernet, MPLS, and OAM features with the one
Junos OS running on both platforms.
The ACX500 routers can be installed indoors as well as outdoors:
• ACX500 indoor—The compact ACX500 indoor routers are one rack unit (U; that is, 1.75 in. or 4.45
cm) tall. Several routers can be stacked in a single floor-to-ceiling rack for increased port density per
unit of floor space. The chassis is a rigid sheet metal structure that houses all the other router
components. The chassis of the ACX500 indoor router measures 1.75 in. (4.45 cm) high, 9.4 in.
(24 cm) deep, and 17.5 in. (44.5 cm) wide. The outer edges of the mounting brackets extend the
width to 19 in. (48 cm) (from the front-mounting brackets to the rear of the chassis). The chassis
installs in standard 300-mm deep (or larger) enclosed cabinets, 19-in. equipment racks, or telco open-
frame racks.
• ACX500 outdoor—The compact ACX500 outdoor routers are environmental hardened, and can be
deployed in an outdoor environment, such as on walls and poles. The chassis of the ACX500 indoor
router measures 1.75 in. (4.45 cm) high, 9.4 in. (24 cm) deep, and 17.5 in. (44.5 cm) wide. The chassis
of the ACX500 outdoor router with the Power over Ethernet (PoE) unit measures 16 in. (40.64 cm)
high, 4.7 in. (11.93 cm) deep, and 10 in. (25.4 cm) wide. You need to purchase the pole-mounting kit
or the wall-mounting kit from Juniper Networks to mount the router in an outdoor environment.
Benefits of the ACX500 Router
• Zero Touch Provisioning (ZTP)—ZTP enables quick deployment of a large number of ACX 500
routers. As the ACX500 supports ZTP, it can be production-ready with little or no manual
intervention. As installation and provisioning is faster, overall operational efficiency is improved, and
the MPLS deployment in the access layer is simplified.
• Integrated high-precision timing (Synchronous Ethernet and Precision Time Protocol)— You can use
the ACX500 routers for Synchronous Ethernet and PTP in a hybrid mode for the highest level of
frequency (10 ppb) and phase (<500 nS) accuracy required for LTE-A. The ACX500, ACX500-O, and
ACX500-O-PoE routers also provide an integrated GPS receiver and can act as a grandmaster (GM)
clock for a distributed PTP implementation, used for the aggregation of small cell traffic when the
backhaul is transported over the Internet.
• Advanced security services— ACX500 routers support IPsec, Media Access Control Security
(MACsec), Network Address Translation (NAT), and Trusted Platform Module (TPM) features to
protect against potential vulnerabilities to the network as well as subscriber traffic.
3
