T-Mobile High-Speed Internet Gateway Operator 
Manual
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Issue: DRAFT Nokia 3TG-01275-AAAA-TCZZA 31
 
4.7 Physical interfaces
All physical interfaces for the T-Mobile High-Speed Internet Gateway, including 
physical connectivity, are located on the backside of the unit as shown in Figure 4 
and include:
• one 100-240V AM power input port
• 5000 mAh battery
• UPS system battery (optional)
• two RJ45 LAN ports that can be used: 
• to connect up to two Gigabit Ethernet LAN ports (all ports are supported while 
the Wi-Fi is working)
• for local management of the T-Mobile High-Speed Internet Gateway through 
a locally-connected PC, laptop, phone, or tablet (local management can also 
be done through the Wi-Fi or Mesh Wi-Fi 6 system) using a Web-based 
Graphical Interface (Web-GUI). See Chapter 
9 for configuration procedures.
• one USB 3.0 type-C port for connecting a USB-connected storage device 
• slot for 4FF/nano-sized SIM card
• the following buttons:
• power on/off button (see procedure 24)
• reset button (see procedure 25)