ETD1000 Instruction Manual - 2017-07-01.docx Page 15 of 28 July 1, 2017
2.2.2.2 ETD1000 Terminal Connections
Plug-in terminal blocks TB2 and TB3 are provided for connection to the RS-485 TMS Expansion
Bus. Both input and output terminals are provided to support multi-drop wiring to additional
ETD1000s or other TMS expansion bus peripherals.
2.2.2.3 ETD1000 Communications Wiring Detail
See Figure 2.2.2.3-1 below.
Figure 2.2.2.3-1 ETD1000 Communications Wiring
2.2.2.4 TMS Communications Wiring Detail
Current version TMS2000, TMS3000, and TMS4000 consoles have the same type of plug-in
terminal connector and wiring designations as the ETD1000, as illustrated in Figure 2.2.2.4-1 below.
Previous versions have a 6-pin modular jack, as illustrated in Figure 2.2.2.4-2 below. If the board
type is a previous version and was indicated on the order to the factory, the ETD1000 is shipped
with a modular-jack-to-terminal-connector adapter, also shown in Figure 2.2.2.4-2.
DRAWING NO. 20033 REV. N/C
O
U
T
I
N
RS-485
MMS.
CH. A (+)
CH. B (-)
SHIELD
3BT2BT
DWG NO. 20028 REV. A
WHT/BL
BL/WHT
SHD
END-OF-RUN
"ON"FOR
END-OF-RUN ONLY
LINE TERMINATOR
OFF
ON
SHIELD
CH. B (-)
CH. A (+)
RS-485 COMMS.
I
N
O
U
T
WHT/BL
BL/WHT
SHD
1/2" NPT FITTING
AND CONDUIT
(EACH ETD1000/RA400)
TO TMS RS-485
COMMS.
"OFF" POSITION
TO ADD ANOTHER
ETD1000/RA400
2 CONDUCTOR SHIELDED
RS-485 COMM. CABLE
"ON"FOR
END-OF-RUN ONLY
LINE TERMINATOR
OFF
ON
SHIELD
CH. B (-)
CH. A (+)
RS-485 COMMS.
I
N
WHT/BL
BL/WHT
SHD
"ON" POSITION
FOR LAST
ETD1000/RA400
O
U
T
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