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4
INM MTL SUM5 Rev 1
2.3 Standard Carrier
The carrier is a platform on which the base modules are mounted. It is designed for DIN-
rail mounting, but may also be surface mounted by the use of available clips (see Section
4.1). The carrier will accept up to 16 module bases as well as one, or two, alarm modules
which can be added to provide contact closure for particular alarm events. The carrier
has channel by channel connections to the main control equipment via screw terminals.
It also has redundant power supply inputs and replaceable, plug-in, onboard fuses – see
table below for type and replacement part number.
Model No.
Description
MTL4-CS16
16ch carrier, screw ter 1 alarm module position
FUS2.5ATE5
2.5A (T) replacement fuses (Pk 10)
Figure 2.2
- Standard CS16 carrier configuration
2.4 System Specific Carrier
These carriers are generally the same format as the standard carrier except that, instead
of the standard screw terminals, they have a system specific, multiway connector for
the system cable. It also has redundant power supply inputs and replaceable, plug-in,
onboard fuses – see table below for type and replacement part number.
Model No.
Description
MTL4-CSxxx
xxxxxxxxxx 16ch carrier, screw ter 1 alarm module position
FUS2.5ATE5
2.5A (T) replacement fuses (Pk 10)
Figure 2.3
- An example of a ‘system specific’ carrier
POWER
V1 V2 0V 0V
PWR2
PWR1
FS1
2.5A-m
2.5A-m
FS2
1A 1B 2A 2B
ALARM
1
2
15
16
A B C A B C A B C A B C A B C A B C A B C A B C
J1
POWER
V1 V2 0V 0V
PWR1 PWR2
FS1
2.5A-m
2.5A-m
FS2
1A 1B 2A 2B
ALARM