Selecting The Dlan Network Type - GE VME DLAN User Manual

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Selecting the DLAN Network Type

In addition to DLAN+, two types of DLAN networks are supported by version 1.04 and later
versions of the DLAN Module: optically isolated and RS-485. The DLAN network type is
selected by setting jumpers JP2, JP3, and JP4, as shown in Table 2-1. At the factory, these
jumpers are set to select the optically isolated network.
VME DLAN/DLAN+ Interface Module User's Manual - August 1995
2-6
Pin 3
Pin 2
Pin 1
Jumper shown in 1-2 position.
Figure 2-4. Selecting a DLAN Configuration Jumper Position
Table 2-2. Jumper Positions For Selecting DLAN Network Type
Jumper
JP2
JP3
JP4
If the DLAN modules is powered on while connected to an optically
isolated network and jumpers JP2, JP3, and JP4 are set to the 2–3
position, the external isolated power supply for the isolated network will
be damaged.
Jumper shown in 2-3 position.
Optically Isolated LAN
1 – 2
1 – 2
1 – 2
Caution
a47079
Pin 3
Pin 2
Pin 1
RS-485 LAN
2 – 3
2 – 3
2 – 3
GFK-1044A