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Integrating GSP-1620 Modems into OEM Products
80-99208-1 Rev. D 7-13
powering down the modem with this cable attached, you must
set this switch to “POS 2” or “POS 3.” (“POS 2” and “POS 3”
are functionally equivalent.) For more information about
using the Diagnostic cable, see Connecting the Diagnostic
Cable on page 2-7.
Note
For more information about the UTPST, see UTPST Overview on page
3-2. For more information about the Operation Monitor, see the
QUALCOMM Globalstar Modem Operation Monitor User Guide
(80-99399-1).
Diagnostic Port Pinouts
Table 7-2 on page 7-14 provides detailed information about
the Diagnostic port pinouts.
The Diagnostic port uses un-translated 3.3V TTL levels. In
Table 7-2, all signals are TTL levels unless otherwise
specified.
Caution
All pins on the Diagnostic port are ESD protected but not short-circuit
protected. Care must be taken when using these pins to avoid any short
circuits to Ground/Power.
Note
Hardware flow control is required on the Diagnostic port. If the two flow
control pins are not implemented by the user, the Diagnostic port may
not function correctly.