
Chapter 3
Ports
The T1 card has the following ports.
SFP28 Ports
The T1 card has dual SFP28 cages that support up to 25G signaling for network connectivity
located on the front I/O bracket as shown in the following figure.
Figure 6: SFP28 Ports for Network Connectivity
These ports have been tested at 25G with both optical and direct-attached copper (DAC)
modules. Specifically, the following modules have been used to test during manufacturing:
• Fomerica TAS-A1EH1-837 25 Gb/s SFP28, dual rate, SR transceiver
• Mellanox MCP2M00-A002E30N Ethernet passive copper cable 25 GbE SFP28 2m, 30AWG
Maintenance Port for UART and JTAG Access
The T1 card has a connector that serves as a maintenance port for UART and JTAG access,
located at the rear of the card (opposite side of the I/O bracket).
The maintenance port on the T1 card allows developers to access the following internal buses on
the card:
• JTAG chain to SoCs
Chapter 3: Ports
UG1495 (v1.0) December 17, 2021
T1 Telco Accelerator Card User Guide
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