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Serial Communications 3101/3201
REC XXXXX
2-7
Table 2-4: Mother Board Wiring Configuration TB 3 – 20mA Serial Communications
Motherboard
20 mA Serial
Communications
TB 3
25 Shield
26
+
20 mA (out)
27
-20 mA (out)
28
+
20 mA (in)
24
-20 mA (in)
Maximum cable length 4000 ft
Use Beldon 9829 or equivalent
Table 2-5: Mother Board Communication Jumper Settings
JUMPERS
Mode OP1 OP2 OP3 OP10
OP13
OP11
RS-485 “A” “A”
“A”
“A”
“A” Normal
”B” Multi-drop
“A” Terminated
‘B” Not Terminated
Default
RS-232 “B” “B”
“B”
“A”
“A” Normal
“B” Not Terminated
”A” Terminated
Default
20
mA “A” “A” “A” “B”
“A” “C”
Summary of Contents for Ramsey Micro-Tech 3000 Series
Page 2: ......
Page 4: ...Revision History Preliminary December 2003 Manual first released ...
Page 14: ...Serial Communications 3101 3201 REC XXXXX 2 2 Figure 2 1 COMM A Board ...
Page 16: ...Serial Communications 3101 3201 REC XXXXX 2 4 Figure 2 3 Serial Connection RS232 ...
Page 17: ...Serial Communications 3101 3201 REC XXXXX 2 5 Figure 2 4 Serial Connection RS485 ...
Page 20: ...Serial Communications 3101 3201 REC XXXXX 2 8 Figure 2 5 Mother Board Area of Detail ...
Page 75: ...Serial Communications 3101 3201 REC XXXXX 3 55 ...
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