Filter
Top Products
Integrator’s Reference Manual
2-14 80-99208-1 Rev. D
Caution
To power off the GSP-1620 modem, set the DTR switch to “POS 2 DTR
Open,” wait at least 10 seconds, and then disconnect power. Setting the
DTR switch to “POS 2” allows the modem to gracefully shut down. If the
modem is powered off without allowing it to go through its shutdown
sequence, some service programming values may be lost.
1
2
3
Steps
TO POWER THE MODEM USING AN OPTIONAL DC POWER
SUPPLY
1. Obtain an optional DC power supply, making sure that it
meets the specifications described at the beginning of this
section.
2. On the Modem Interface cable bridle (shown in Figure
2-2), locate the RESET lead (yellow). Electrically isolate
the RESET lead by capping or taping it.
The RESET lead is designed to reset the GSP-1620
modem whenever it is grounded for five seconds.
Electrically isolating the lead prevents it from grounding
and inadvertently resetting the modem.
3. Plug the DC POWER (red) and SIG GND (black) leads
from the Modem Interface cable bridle into your DC
power source.
4. Turn on the power supply.
You are now ready to use the modem.