Network Interface Module (Nim) - Onan MDKBK Service Manual

NETWORK INTERFACE MODULE (NIM)

Configuration Jumpers
The optional NIM board is mounted in the control
box and is connected as shown on Page A-3. It has
five jumpers to configure the board for the specific
application (Figure 5-12). Make sure a replacement
board is configured the same as the old one.
Note:For SAE J1939 applications, see Onan Publica-
tion D-3315, Supported Messages on SAE J1939.
This is the basis for the software interface between
the genset controller and the remote boat monitor.
Note: For SmartCraftt applications, see your Cum-
mins MerCruiser Distributor for more information.
1. Jumper W1 has no function at this time.
2. Jumper W2 will be cut when the genset is in an
SAE J1939 network application. The jumper
FIGURE 5-12. NIM CONFIGURATION JUMPERS (W1—W5), LEDS (DS1—DS4) AND CONNECTORS
SmartCraft is a trademark of the Brunswick Corporation.
J10
must remain uncut when the genset is in a
SmartCraft network application.
3. Jumpers W3 and W4 are used to assign the
J1939 network address of the genset in a multi-
ple-genset installation. To assign an address,
cut the jumpers as scheduled in Table 5-1. See
your Cummins MerCruiser Distributor for a
SmartCraft application.
TABLE 5-1. J1939 ADDRESSES
JUMPER W3
Not Cut
Not Cut
Cut
Cut
4. Cut Jumper W5 if the bus termination resistor
on this NIM board is not required to terminate
the network bus. (The jumper is cut on a Smart-
Craft board.)
J11
5-10
JUMPER W4 ADDRESS
Not Cut 234
Cut 158
Not Cut 179
Cut 203
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