Instruction Manual

Pulsar Plus Controller Family
Issue 7 December 2011 40
Connect to the Controller
Step Action
9 RS-485 Serial Connection (Skip if factory installed in the system)
In addition to being available at connector J9, the RS-485 rectifier communication bus is also
accessible at connector J10. J10 is a standard shielded RJ45 connector on the controller that
provides quick connections between the controller and serial system rectifiers and components.
J10 is not available on slot-controllers since these units obtain their RS485 connections internally
through a backplane connection through J9. J10 is used to directly connect to power shelves and
distribution control boards such as the QS871, NE82, and ES772. Following is the pin assignments
for connector J10:
Pin # Signal Name Description
1 RS485+
“B” side of the RS485 differential pair.
2 RS485-
“A” side of the RS485 differential pair.
3
GP_REF
Reference lead for the RS485 rectifier GP bus. Must
be connected to the reference side of internal
communication circuitry in the rectifier.
• DC Return bus (DG/Ground) in Infinity NE
• Negative 48V DC bus (BAT) in CP/EPS
4 -8
No Connection
Note: when using J10, the GP_Ref signal must still be referenced properly in the system.
Communication For The NE843G And CP843A
with the Compact Power (CP) Line of systems
NE843G
Kit CC109144820 provides all the components necessary to connect the serial communication of
the NE843G to a J85480S1 L1 or L4 CP shelf. These components include a CC848833475
communication cable (ribbon cable to RJ45 adapter on rear of CP shelf), a CC848833384 RJ45
bracket (for adapter cable), CC408574131 M5 screw (to secure bracket to CP shelf), a 555052-1
RJ45 Coupler, and a CC848791500 a 4’ RJ45 Serial Cable (Controller to 1
st
CP Shelf).
• Use the M5 screw to secure the RJ45 bracket to the first CP shelf at the ground screw
location located at the rear of the shelf.
• Attach the RJ45 coupler to the adapter bracket.
• Connect IDC end of the communication cable to J1 on the rear of the CP power shelf and
the other end to the coupler.
• Attach the RJ45 serial cable between the shelf adapter and J10 of the controller. Note a
standard RJ45 Cat-5 cable can be used to make the connection between the CP shelf and
the NE843G.
• Strain relief the communication cable to the shelf and controller as necessary.