Precidia Ether232Plus - Reconfiguration

1 Before You Start Ether232Plus User Guide
6 Precidia Technologies Inc. 02-CML000057
• For RS-232 connections:
- If you are connecting the Precidia unit to a DTE (Data Terminal Equipment)
device, you need one (1) null modem serial cable for configuration and for
connecting your DTE serial device after configuration
- If you are connecting the Precidia unit to a DCE (Data Communication Equip-
ment) device you need one (1) null modem serial cable for configuration and
one (1) RS-232 serial cable for connecting your DCE serial device to the
Ether232Plus
- If you are connecting the Precidia unit as a Hayes-compatible modem, or to a
Hayes-compatible modem, you need: one (1) specialized null modem serial
cable. Some POS terminals may also require this type of cable.
• For RS-422 connections:
- One (1) null modem serial cable for configuration, and one (1) RS-422 serial
cable with an RJ-45 connector
• For RS-485 connections:
- one (1) null modem serial cable for configuration and one (1) RS-485 serial
cable with an RJ-45 connector
I
MPORTANT
! Please see Appendix E: Pinouts and Power Supply, for cable and
connector pinouts.
TIP How do you know if your serial device is DCE or DTE?
DCE devices generally have a female (receptacle) DB-9 connector. Examples of DCE
devices include modems, Digital Service Units (DSU), Channel Service Units (CSU),
and most communications equipment.
DTE devices generally have a male (pin) DB-9 connector. Examples of DTE devices
include communications servers, terminals, serial printers, and PCs with native RS-
232-E serial ports.
Reconfiguration
After your Precidia unit is operational, you will require one null modem serial cable,
and a PC or dumb terminal to locally reconfigure the unit.
N
OTE
: You can reconfigure the Precidia unit remotely using telnet if you have set the
Remote Password. See Appendix D: Connecting with Telnet.