Network Poll Accelerator
Crestron
C2N-NPA8
Ports/Connectors
The ports/connectors on the top panel of the C2N-NPA8 are described in the
following paragraphs.
NOTE:
Interface connectors for the PWR and NET ports are provided with the
C2N-NPA8.
NET A - H
These eight segments provide 32 standard (24 Y Z G) Cresnet connectors (in groups
of four) for Cresnet device connections. Each group of four supports 32 electrical
Cresnet connections.
NOTE:
Although there are eight segments with four connectors each, a control
system can only address 252 devices (03 through FE).
POWER
These connectors (quantity eight) are used to supply 24VDC power to each segment
as well as providing a jumping point for powering another segment on the
C2N-NPA8. To power the C2N-NPA8, 24VDC power must be supplied to a Cresnet
connector or the power connector on NET A or NET B. For more details, refer to
“Power Connections” on page 12.
CAUTION:
Use only Crestron power supplies for Crestron equipment. Failure to do
so could cause equipment damage or void the Crestron warranty.
LAN
An 8-position RJ45 port is used for an Ethernet connection to a control system with
Ethernet capabilities. Refer to the following table for the Ethernet connector signals
and use an appropriate cable (not supplied). For information on connecting the LAN
port to a control system, refer to “Configuring for TCP/IP Communications” on
page 15.
NOTE:
Only one C2N-NPA8 can be connected to a control system.
LAN Connector Specifications
TYPE PIN SIGNALS
1 TD+
2
TD-
3 RD+
4
Connected to pin 5
5
Connected to pin 4
6
RD-
7
Connected to pin 8
8-Position
RJ45
8
Connected to pin7
1
8
1
8
Front
Top
NOTE:
To determine which is pin 1 on the cable, hold the cable so that the end of
the eight pin modular jack is facing away from you, with the clip down and copper
side up. Pin 1 is on the far left.
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Network Poll Accelerator: C2N-NPA8
Operations Guide – DOC. 6087A
