Pin Assignment - Unitech MR350 MKII Technical Reference Manual

MR033-E
RS 422/485 T-Junction Box
Front
?? ? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ??
RJ-4 5 Connect to MR series terminal with
?
AC 13.5V Power .
This power input will flow to RJ-45
?
and drive terminal which use
13.5VAC
13.5VAC as power source.
INTERNAL JUMPER SETTING

PIN ASSIGNMENT

4-Wire RS422
1. RX+
2. RX-
3. TX+
4. N.C.
5. N.C.
6. TX-
7. AC-HOT
8. AC NEUTRA
Back
RJ-4 5
?
RJ-4 5
?
2-Wire RS485
1. RX+
2. RX-
3. N.C.
4. N.C.
5. N.C.
6. N.C.
7. AC-HOT
8. AC NEUTRA
8-90
Connect to next terminal,
cradle or T-Box without AC
13.5V power
Connect to previous terminal,
cradle or T-Box without AC
13.5V power