the Synchronous Equipment Timing Source (SETS), and for distributing them to downstream PTP
clocks.
•
External management interfaces (RS232 console, management ENET, USB console, USB storage) and
system-status LED indicators.
Supported RSPs
The Cisco ASR 902 Router supports the following RSPs:
•
A900-RSP1A-55
—
Provides 2-GB of synchronous dynamic random access memory (SDRAM), 5 Mb
of Ternary content-addressable memory (TCAM), 3-Mb buffer table, 576-Mb forwarding memory, and
1,536-Mb packet buffer memory.
•
A900-RSP1B-55
—
Provides 4-GB of SDRAM, 20 Mb of TCAM memory, 144-Mb buffer table, 1152-Mb
forwarding memory, and 1,536-Mb packet buffer memory.
•
A900-RSP2A-128
—
Provides 4-GB double data rate type three (DDR3) memory and 128-Gbps aggregate
throughput.
•
A900-RSP2A-64
—
Provides 4-GB double data rate type three (DDR3) memory and 64-Gbps aggregate
throughput.
•
A900-RSP3C-200-S
—
Provides 8 GB DDR3 memory, 64MB flash memory, 20 Mb of TCAM memory,
8 GB of SDRAM, 200 Gbps throughput, and a USB port for mass storage on the faceplate.
The Cisco ASR 902U Router supports the following RSPs:
•
A900U-RSP2A-128
—
Provides 4-GB double data rate type three (DDR3) memory and 128-Gbps
aggregate throughput.
•
A900U-RSP2A-64
—
Provides 4-GB double data rate type three (DDR3) memory and 64-Gbps aggregate
throughput.
The SD memory card is not field replaceable. Do not try to remove or replace it.
Caution
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
12
Overview
RSP Modules