CRESTRON
CNX Relay Output Expansion
Card: CNXRY-16
Description
Functional Description
The CNXRY-16 Relay Output Expansion Card provides 16 isolated, normally open
relay closures. The maximum rating per contact measures 1A, 30 VAC/VDC. There
are MOV (metal oxide varistor) arc supression devices across the contacts for use
with “real world” loads. Refer to the schematic below.
CNXRY-16 Schematic
2
3
1
B
4
5
6
7
8
C
2
3
4
5
6
7
8
C
1
A
Physical Description
The CNXRY-16, shown below, is a circuit board fastened to an aluminum faceplate.
The card is manufactured to easily fit into an unoccupied slot in a Crestron CNX
Generation Control System.
CNXRY-16 Faceplate
The faceplate contains two identical male, 9-pin connectors. There are eight relay
pins and one common ground pin per connector. Silk screening is applied to the
faceplate; relay pins are labeled A1 through A8 and B1 through B8. Common
Operations Guide - Doc. 8122
CNX Relay Output Expansion Card: CNXRY-16
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