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INSTALLATION MANUAL
CAA460P - CAA460PNB
Relay Expansion Module
Figure 2: Serial Cable Connection
3] JUMPER SETTINGS
As shown in Figure 3, there are 5 jumpers on the
CAA460P which set some of the module's operating
modes.
Figure 3: Jumper Location
EOL JUMPER
Place the EOL jumper ON when the CAA460P is at
the beginning (Start Point) or at the end (End Point)
of the E-Bus network. Otherwise, place the jumper
OFF. See Figure 4.
HIGH/LOW BIAS JUMPERS
Sets
the
impedance
ther
HIGH
or
LOW
Set
both
jumpers
normally. Setting the impedance to LOW raises
the DC level and should only be used in advanced
installations. See Figure 4.
ADR JUMPER
Used in multiple relay expansion installation types,
of
the
RS-485
to
(default
=
HIGH).
to
HIGH
when
running
this jumper sets the addresses of the modules.
Set the fi rst module's ADR jumper to ON to set
the module's address to Expander 1. A module
with an address of Expander 1 recognizes the
on-board relays as relays 3-9 when connected to the
CT-V900-A controller. Set the second module's
jumper to OFF to set the module's address to
Expander 2. A module with an address of Expander 2
recognizes
the
10-16 when connected to the CT-V900-A controller.
See Figure 4.
RLY JUMPER
Reserved for future use.
Figure 4: Jumper Settings
Set all jumpers to OFF whenever resetting
the controller.
ei-
on-board
relays
as
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