Product specifications

Hardware Description
5-8 80-99240-1 Rev. D
12 CP_DTR RS-232 DTE -> DCE Control port DTR
13 Reserved Reserved Reserved
14 CP_TXD RS-232 DTE -> DCE Control port TXD
15 CP_DSR RS-232 DTE <- DCE This pin is the DSR for
the Control port and is
asserted when the
modem detects activity
on the Control port and
is ready to
communicate with the
DTE over this port.
This signal is
de-asserted when the
modem detects no
activity on the Control
port; or is de-asserted
as an acknowledgment
to the user, indicating
that the modem has
completed its power-
down sequence as no
active DTR lines were
seen on the serial
ports.
16 CP_RXD RS-232 DTE <- DCE Control port RXD
17 MIC_P Analog Input to modem Analog Microphone
Input (Reserved for
Future Use)
18 MIC_N Analog Input to modem Analog Microphone
Input (Reserved for
Future Use)
19 Reserved Reserved Reserved
20 DP_DTR RS-232 DTE -> DCE Data port DTR
21 Ground Ground Ground return Ground return
22 DP_RI RS-232 DTE <- DCE Data Port RI
Table 5-1. Interface Connector Pinouts (continued)
Pin
number
Signal Name Signal
level
Direction
User <-> Modem
Description