Introduction
Topcon GR-5 Quick Start Guide
12
serial port, or Bluetooth. The following industrial-grade
cards were tested in the temperature range -30°C to 60°C (-
22°F to 140°F).
• Transcend® Ultra Industrial 2 GB
• APRO® Industrial 4GB
• SanDisk® Ultra II
• Swissbit® Industrial 2GB
Before using any other SDHC cards, consult with TPS
technical support about compatibility.
The SIM card slot is located to the right of the MINTER
inside the battery pocket and allows a standard SIM card to
be installed in the receiver. Once installed, the SIM card
provides a unique identification for the receiver’s GSM
module and enables the receiver’s GSM functionality based
on the subscribed services. The GSM module with the SIM
card installed can be configured via TRU. A SIM card can be
purchased from a local cellular provider.