Document Part # 026-4157 Rev 0 19-FEB-2016
Page 2 of 4
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The E2E’s standard I/O port (COM2, located on the E2E Power Interface Board, or PIB) also has two
connectors (
Figure 1
). Unplug the connectors from the COM A and COM D plugs, and plug them into the
COM2 plugs on the E2E.
STEP 3: E2E Termination Jumper Settings
The network termination jumpers, directly above the two COM2 plugs on the PIB, will need to be set to the
same positions as the COM A and COM D termination jumpers on the RMCC/BEC/BCU. The rules for
termination on E2E I/O networks are the same as the rules for RMCC/BEC/BCU I/O networks. Set the three
jumpers to the middle
I/O
(terminated) position if the port is at the end of a network segment or the hub of
a star configuration, and down
NO
(unterminated) if the port is in the middle of a segment.
There is one set of RS485 jumpers for each RS485 port (COM2A-2B; COM6; and COM4A-B). Jumpers J8-J10
are located directly above the COM2A connector port, and jumpers J11-J13 are located directly above the
COM2B port. The RS485 termination jumpers (J8-J22) are used to terminate the devices at the beginning
and end of an RS485 Network. If the E2 is the beginning of all RS485 I/O or MODBUS Networks, all three of
these jumpers should be set to the up position. For MODBUS, the jumpers should all be in the top-most
position (
MOD
). For I/O Net, the jumpers should be in the middle position (
I/O
). For no termination, set the
jumpers to the down position (
NO
).
Refer to the E2E User’s Manual (
P/N 026-1614 Rev 5 or later)
for expanded communication setup
information.
