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Controller Connections
The QS840A and QS841A provide the same interfaces with the exception of the LAN connection which
is available on the QS841A. The QS841A provides a standard RJ45 receptacle, P6, for the 10/100 Base-T
Ethernet connection. Following is the view of the controller and its interfaces.
The QS841A has an IEEE 802.3 compliant 10Base-T network interface with a grounded connector shield.
Where intra building lightning surge protection is of concern, ABB Power recommends the use of a
shielded cable, where both ends are tied to ground. This cable must be supplied by the user. (example:
CAT 5 E STP)
Connection to the LAN is made by attaching standard Cat-5 cable from P5 to the appropriate
10/100Base-T LAN connection. The cable should be appropriately dressed out of the CPS6000 system
to the LAN connection. The shroud of P5 has been terminated to chassis to accommodate the use of a
shielded Cat-5 cable connection.
AC Connections
AC Connections to Shelf
Review the ac connection on the installed shelf. Refer to Tables 3-B and 3-C for detailed CPS6000
rectifier ac input requirements.
Caution: Ensure ac power is OFF and use appropriate lock-out tag-out procedures before continuing
with ac connections.
Caution: When connecting to utility source, ensure all local and national wiring rules are being
complied with.
Caution: When routing AC cables ensure cable does not come in contact with sharp or rough surfaces
that may damage insulation and cause a short circuit. Make sure cable does not come in contact with
any pinch points such as doors.
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J3 Isolated RS-232 Port
P5 Auxiliary Port
J2 Shelf Paralleling Connector
J1 Office Alarm Connector
Controller Faceplate Connector
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