GE IC300TIU111 ユーザーズマニュアル
CH.2: TIU050 06 Apr 2000 PAGE 17
GFK-1819
Pull-up and Pull-down switches are used to increase the signal level on the RS-485 bus. This is useful if
there is a long bus and a significant amount of attenuation is anticipated.
there is a long bus and a significant amount of attenuation is anticipated.
Termination resistance of 120
Ω
must be placed across each end of the RS-485 bus. With switch 2 ON,
a 120
Ω
resistance is placed across the bus. This is only used if the TIU050/100/110 is the last device at
either end of the bus.
2.5 TIU050
Dimensions
TOLERANCES ARE +/- 0.01” [0.3mm] UNLESS STATED OTHERWISE
TIU050 CUTOUT DETAILS
3.27” [83 mm]
+ 0 .0 2
-0 .0 0
-0 .0 0
+ 0 .5
-0 .0
-0 .0
5.95” [151m m]
UP TO 0.04”[1mm] CORNER
RADIUS IS ACCEPTABLE
Figure 2.5 – TIU050 Cutout