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Quick Bench Set-Up
80-99208-1 Rev. D 2-13
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Steps
TO POWER THE MODEM USING THE KIT’S AC ADAPTER
1. On the Modem Interface cable bridle (shown in Figure
2-2), locate the DC POWER (red) and SIG GND (black)
connectors. Then electrically isolate each connector by
capping or taping it.
Since you will be using the AC adapter instead of a DC
power supply, it is important to isolate the DC power
connectors to prevent shock.
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. Locate the power connector in the middle of the
Diagnostic cable (as shown in Figure 2-3), then plug the
the AC wall adapter cable into the power connector.
4. Tighten the lock ring on the adapter cable onto the
locking threads of the power connector, so the adapter
plug remains firmly seated in the power connector.
The lock ring prevents the adapter cable and Diagnostic
cable from inadvertently disconnecting and interrupting
power to the modem.
5. Make sure the switch on the Diagnostic cable is set to
“POS 1 DTR to GND.”
When this switch is set to “POS 1 DTR to GND,” DTR is
asserted on the Diagnostic cable and the modem will
power up immediately when power is applied.
6. Plug the AC wall adapter (as shown in Figure 2-3) into an
AC power wall outlet.
You are now ready to use the modem.