Owner`s manual

16
TX104/TX108 EIA-422 TX104/TX108 EIA-422
DB-25 FEMALE DB-25 FEMALE
NOTE: The EIA-422 port will give you the capability of using a cable
up to 4000 feet between two Telplex units.
 
If you wish to connect the composite port of a local TX102 to a remote
Telplex via cable, use the COMPOSITE EIA-232 port on the back
panel of the TX102. You must program the unit to use a Line Type of
Direct (see Section 5.8 ). See Section 3.5.1.2 for the pin/signal
definition of the composite port.
IMPORTANT: When connecting a TX102 to a remote Telplex via
cable, you must use the EIA-232 composite port on the remote unit.
This port is usually connected to an external modem. Do not use the
EIA-422 port on the remote unit.
Some remote Telplex models will require an RJ-45 adapter to convert
the EIA-232 composite port's DB-25 connector to an RJ-45 connector.
The following Telplex models require an adapter to connect to the
TX102 via cable: TX104, TX108, and TX24-V41B module. The
adapter required for these models is 25FRJ45PC-1. The pinout for
this adapter and the required cable are shown in Appendix A.4.4 .
RX+
TX+
TX-
SGND
CTS
16
7
5
3
2
1 PGND
14 RX-
DTR
20 20
14
1
2
3
5
7
16
DTR
RX-
PGND
CTS
SGND
TX-
TX+
RX+
Figure 6