8
ASYNC SHORT-HAUL MODEM MP
3. Configuration
The Async Short-Haul Modem MP features externally accessible configuration
switches (two DCE/DTE switches and a DIP-switch set), located on the underside
of the unit; there is no need to open the case to configure the Modem.
3.1 Quick Set-Up Instructions
In the majority of applications, you won’t need an in-depth knowledge of the
Modem’s capabilities to get up and running. The following quick-setup DIP-switch
configurations cover most Modem operating environments. (Note that DIP-switch
8 is not used.)
3.1.1 P
OINT
-T
O
-P
OINT
C
ONFIGURATION
If you are installing these Modems in a point-to-point application with a computer,
printer, or terminal, configure the DIP switches on both Modems as follows:
Switch Number
1
2
3
4
5
6
7
Positions
OFF
OFF
OFF
ON
ON
ON
OFF
3.1.2 M
ULTIPOINT
C
ONFIGURATION
The Modem supports multipoint operation in either daisychain or star
configurations.
In a multipoint topology, you must configure the master Async Short-Haul Modem
MP’s DIP switches differently than those of the slave Modems. These are the
proper DIP-switch settings for a daisychain topology:
Switch Number
1
2
3
4
5
6
7
Master Positions
ON
ON
ON
OFF
OFF
OFF
OFF
Slave Positions
ON
ON
ON
OFF
OFF
OFF
ON
