User's Manual

Boomer II User Manual & Integrator’s Guide _________________________________________________Installation
BM210012WT37 35 Copyright Wavenet Technology © November 2003
J1
Pin #
Signal Description Signal Active State
data throttling
9 RI Ring indicator
Output Pulses Low when messages
are waiting
Status Input / Output lines
Note: Not currently supported but may be added in future releases.
The status lines (SS0 to SS3) may be software configured for bi-
directional operation. Each line has a 100kΩ pull-up resistor, 33Ω
series resistor and clamp diode to the internal supply line for
protection. The electrical interface capability, equivalent circuit and
operation of these lines is summarized in the tables below:
Status Input/Output Equivalent Circuit
Status Input/Output Electrical Characteristics
Parameter Range Low High
Input Voltage 0-3.3 V OR 0-5V 0.8 V (max) 2.5 V (min)
Output Voltage 0 – 3.3 V 0.5 V (max) 2.3 V (min)
Input Current 100 µA (max) 100 µA (max)
Output Current 3.2 mA (max) 1.6 mA (min)