Contact Input Terminal Board; Tbcis#C Contact Input With Group Isolation - GE Mark VIeS System Manual

5.4 TBCIS#C Contact Input with Group Isolation

The Contact Input with Group Isolation (TBCI) terminal board accepts 24 dry contact inputs wired to two barrier-type
terminal blocks. For contact excitation, dc power is wired to TBCI. The contact inputs have noise suppression circuitry to
protect against surge and high-frequency noise.
Caution
12 Contact
Inputs
Shield
Bar
12 Contact
Inputs
YDIA Discrete Input Modules
Some panels contain a mixture of ac and dc wetting voltages. To prevent misoperation
and damage these terminal boards, care must be taken to avoid connecting the ac
wetting voltages to the terminal board wetting voltage inputs. Furthermore, verify
that the ac wetting voltages and the dc wetting voltages are not inadvertently
cross-connected.
x
x
x 1
2
x
3
x
4
x
5
x
6
x
7
x
JE1
8
x
9
x
10
x
11
x
12
x
13
x
14
x
15
x
16
x
17
x
18
x
19
x
20
x
21
x
22
x
23
x
24
x
x
x
25
x
26
x
27
x
28
x
29
x
30
x
31
x
32
x
33
x
34
x
x 35
36
x
37
x
x 38
39
x
40
x
41
x
x 42
43
x
44
x
45
x
46
x
47
x
48
x
x
x

Contact Input Terminal Board

Public Information
JT1
DC-37 pin
connectors with
latching fasteners
JE2
J - Port Connections:
J - Port Connections:
Plug in I/O pack(s)
Plug in I/O Pack(s)
For Mark VIe /
JS1
for Mark VIe system
control systems
The number and location
depends on the level of
redundancy required .
JR1
Use JR1 for
simplex
Barrier type terminal blocks
can be unplugged from
board for maintenance.
GEH-6855_Vol_II System Guide 121