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Overview
The Cisco ASR-920-12SZ routers are routers for the mobile backhaul for 5G markets. These 5G-ready routers
meet the ITU G.8273.2 Class B Timing specifications and provide better accuracy using the precision timing
protocol (PTP) for phase delivery.
The two models in this category are:
• Cisco ASR-920-12SZ-A with a single fixed AC power supply, 12 1/10GE SFP interfaces, Timing
(1PPS/10MHz/ToD) interfaces, and pluggable a GNSS module.
Figure 1: Cisco ASR-920-12SZ-A Front Panel View
• Cisco ASR-920-12SZ-D with dual fixed DC power supplies, 12 1/10GE SFP interfaces, Timing
(1PPS/10MHz/ToD) interfaces, and a pluggable GNSS module.
Figure 2: Cisco ASR-920-12SZ-D Front Panel View
1
Time of Day (TOD)
3
Management port (MGMT)
Cisco ASR-920-12SZ-A and Cisco ASR-920-12SZ-D Aggregation Services Router Hardware Installation Guide
2
C H A P T E R
2
Auxiliary Console (AUX CONS)
4
ZTP
9
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