CABLING
MJ-45 CABLES AND ADAPTERS
IMPORTANT: The DS-Series host communications modules
have an MJ-45 port which uses an 8-pin crossed modular cable to
connect to a local EIA-232 device such as a computer terminal or
external modem. Most serial computers do not have MJ-45
connections; therefore an adapter is provided with this unit to
convert from a DE-9 connector to an MJ-45 connector (Bay Tech
Part No. 9FMJ45PC-4). An adapter to convert from a DB-25
connector to an MJ-45 connector is also available from Bay Tech,
upon request (Bay Tech Part No. 25FMJ45PC-4). The 8-pin
crossed modular cable is configured to operate with these adapters.
CAUTION: All power should be removed from the DS Series
unit prior to removing or installing cables.
Figures 1 and 2 provide visual representation of an MJ-45 receptacle and
plug; pin number assignments are given in Table 2.
Fig. 1: MJ-45 Receptacle Fig. 2: MJ-45 Plug
DS73TP CONNECTION
You should connect a straight cable between the MJ-45 ports of the
DS73TP module and the network hub. The “LINK” light will light
green when a good link has been established.
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