
IDP-782 - Hardware Guide
Figure 13: Open Drain Outputs
Parameter
Typical
Max.
Units
Sink Current
-
250
mA
Applied Voltage
-
20
V
Voltage output (sink current = 250 mA)
0.34
1.6
V
3.4.5 Pass-Through Mode
A terminal can be configured for pass-through mode when there is no application firmware present. A
block diagram of pass-through mode is shown in Figure 14. In pass-through mode, the terminal connects
the modem's serial interface to the terminal's RS-232 port.
T213, Version 02
33
© SkyWave Proprietary