Emerson DL8000 - Dial-Up Modem Communications Module

DL8000 Preset Instruction Manual
Revised February-2016 Modules 3-41
Figure 3-41. EIA-422/485 (RS-422/485) J4 Jumper
Table 3-16. EIA-422 (RS-422) Module
Jumper
Terminated
Not Terminated
TER
Out
Half
Full
TER
Out
Half
Full
J3
x
x
J4
x
x
J5
x
x
J6
x
x
Table 3-17. EIA-485 (RS-485) Module
Jumper
Terminated
Not Terminated
TER
Out
Half
Full
TER
Out
Half
Full
J3
x
x
J4
x
x
J5
x
x
J6
x
x
3.3.8 Dial-up Modem Communications Module
The dial-up modem module interfaces to a Public-Switched Telephone
Network (PSTN) line. The dial-up modem module provides for a
telephone interface on the host port that is capable of both answering
and originating telephone calls. The dial-up modem module also
provides electronics that conserve power when the phone line is not in
use. The dial-up modem module requires a telephone line connection.