Product Specs

Packet Modem Spec Rev6.doc 30 06/09/00

• The baud rate is user configurable from between 300 and 115.2Kbps. The

baud rate is adjustable in software.

• In case of a reboot (due to fatal errors or any other reason), the DCD line

will be set inactive so that the user application can detect a reset

condition and take the necessary action.

• Functionally the Data Port integrates AT Commands and Alert Messages as well as

Application Packet Data PPP traffic.

• The Data Port provides limited deconfliction of PPP vs. AT Commands and Alerts by

queuing alerts to the user, if control port is not in use. The User Application is

required to deconflict AT commands sent to the module if no control port is used.

6.3.3 DB 25 Data and Control Port Pinouts:

Table 1 Interface Connector Pinout

number

Signal Name Signal

level

Direction

User <-> Module

Description

1 Chassis

Ground

- Chassis Ground Isolated chassis

ground

2 DP_TXD RS-232 DTE -> DCE Data port TXD

3 DP_RXD RS-232 DTE <- DCE Data port RXD

4 DP_RTS RS-232 DTE -> DCE Data port RTS

5 DP_CTS RS-232 DTE <- DCE Data port CTS

6 DSR RS-232 DTE <- DCE Module DSR

7 Ground Ground Ground return Ground return

8 DP_DCD RS-232 DTE <- DCE Data port DCD

9 DC_POWER 5.2V-11V Module Power

10 DC_POWER 5.2V-11V Module Power

11 Ground Ground Ground return Ground return

12 DP_DTR RS-232 DTE -> DCE Control port DTR

13 Reserved Reserved Reserved Control port CTS,