RS-232/RS-485/422
Option
23
Xtreme/104 User's Manual, ver. 0.01
Line Termination
Jumper blocks JB4, JB5, JB6 and JB7 can terminate the
transmitters and receivers on the individual RS-485/422 ports
through jumper selectable 120
Ω
fixed resistors.
Please refer to
Figure 1
for the locations of JB4, JB5, JB6, JB7
and J1, J2.
Example
The following example shows the settings on JB4, JB5, JB6
and JB7 where the half duplex RS-485 port 1is terminated, the
full duplex RS-485 port 2 is terminated, the multi-drop slave
RS-485 port 3 is not terminated, and the RS-232 port 4 is not
and should not be terminated
JB4
A
JB5
B
C
D
E
F
G
A
B
C
D
E
F
G
JB6
A
B
C
D
E
F
G
JB7
A
B
C
D
E
F
G
Technical Notes:
1. For half duplex RS-485 ports you only jumper positions D
and E on the appropriate jumper block (JB4, JB5, JB6 or
JB7) if you want them terminated.
2. For full duplex and multi-drop slave you can jumper
positions D, E, F, and G on the appropriate jumper block
(JB4, JB5, JB6 or JB7) if you want them terminated.
3. For RS-232 ports do not jumper positions D, E, F and G
on the appropriate jumper block (JB4, JB5, JB6 or JB7).
Summary of Contents for Xtreme 104 Opto
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