TAC Xenta 400 Series, Manual

Page: 43 / 48

TAC Xenta, TAC Xenta® 400 I/O Modules 4 Installation
TAC AB, Dec 2004 43 (48)
0-004-7771-3 (EN)
TAC Xenta 400 input/output cable requirements
Terminals type X:
Min. cross-sectional area................................ 0.25 mm² (22 AWG)
Max. cable length .................................................... 200 m (660 ft.)
Terminals type U, connected as
a) digital inputs,
b) measurement devices using voltage signals that are
not
powered via the same transformer as the I/O module or
c) measurement devices using current signal
Min. cross-sectional area................................ 0.25 mm² (22 AWG)
Max. cable length .................................................... 200 m (660 ft.)
Terminals type U, connecting measurement devices, using voltage
signals that are powered via the same transformer as the
I/O module:
Min. cross-sectional area................................ 0.75 mm² (19 AWG)
Max. cable length ........................................................ 20 m (66 ft.)
Fig. 4.18: Connecting the communication cable
TAC Xenta 1
C1 C2
C1 C2
C1 C2
C1 C2
TAC Xenta 1
TAC Xenta 2
TAC Xenta 2
470 k
Ω
¼ W
Communication cable,
unshielded Communication cable,
unshielded
Terminals for
incoming cables
Terminals for
incoming cables
Shield is grounded
at one point only
Separate
junction