Johnson Controls M4-CVM03050, Руководство по установке

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Figure 4: FC bus terminal block wiring
Table 2: FC bus configuration
Description
1 Wiring for a terminating device on the FC bus
2 FC bus terminal block plugs
3 Wiring for a daisy-chained device on an FC bus segment
4 Connects to the next device on the FC bus
5 Isolated Shield connection terminal
Note: The Shield terminal (SHLD) on the FC
Bus terminal block is isolated and can be used
to connect the cable shields on the bus (Figure
4).
SA bus terminal block
The SA Bus terminal block is an orange, removable,
4-terminal plug with +15 VDC that fits into a board-
mounted jack.
Use a 4-wire twisted, shielded cable, as shown in
Figure 5, to wire the removable SA Bus terminal
block plugs on the CVM and other SA Bus devices in
a daisy-chain configuration. For more information
about SA Bus terminal functions, requirements, and
ratings, see Table 7.
Figure 5: SA bus terminal block wiring
Note: Stranded, 4-wire (2 twisted pair) shielded
cable. One twisted pair is the + and - leads. The
second pair pair is COM and POWER.
Note: Do not use the modular SA Bus port and
the terminal block SA Bus simultaneously. Only
use one of these connections at a time.
Note: The CVM controller is the EOL for the SA
Bus.
Table 3: SA bus configuration
Description
1 Wiring for a terminating device on SA bus
2 SA bus terminal block plugs
3 Wiring for a daisy chained device on SA bus
4
Cable shield connection
Note: Connect the shields to ensure they are
continuous the entire length with only one ground
location.
5 Connects to the next device on the SA bus
Modular ports
The modular SA and FC bus ports on the face of the
CVM (Figure 6) are RJ-12 (6-position) modular jacks
as shown in Figure 6.
The modular SA Bus port provides a connection
for the Mobile Access Portal (MAP) Gateway, VAV
Balancing Tool, DIS1710 Local Controller Display,
WRZ78xx Series One-to-One Wireless Transmitter,
and NS Series sensors.
Note: The MAP Gateway serves as a
replacement for the BTCVT, which is no longer
available for purchase, but continues to be
supported.
M4-CVM03050 VAV Controllers Installation Guide 6