RSS_v180808n
RSS Series
Page 35
7.
IOC-3-R Channel I/O Control Card
Item # 1340073
The
IOC-3-R 3 Channel I/O Control Card
provides gang and individual control
for up to three A/B switch cards. It can be used to link multiple chassis in large
gang switching systems, allowing for simultaneous switching of multi-chassis
systems.
It can be installed along with an IPC-16-R network control card or an IOC-16-R
I/O access card.
A connection is also provided for external power input from the PS-WRI-4 or
s24VDC source.
Connections for individual control is made with screw terminal blocks. For gang
systems, connection between control cards is made using 6 wire connection
modular jack cords. ( RJ11 / RJ12 type )
7.1.
IOC-3-R Card Installation
The IOC-1-R installs from the rear of the chassis in either of the two control card slots only. If an IPC-R-16
network card is also used, the IOC card should be installed in 2
nd
control card slot, which is the 3
rd
slot from the
left in the rear of the chassis. Install the card with the components facing left. The chassis and cards are keyed
to prevent incorrect insertion. The IOC-3-R may be inserted and removed with the power on (hot
insertion/removal).
7.2.
IOC-3 A/B Switch Control Connections
The IOC-3 uses a four position screw terminal for connections to control the three A/B switch cards. Circuits 1 –
2 – 3 correlate to positions 1 – 2 – 3 in both the RSS-3 and RSS-16 chasses.
Pin
Designation
Function
FBK
Feedback Status
This pin is open relative to ground for Position A
and closed to ground for Position B
G
Ground
Signal Ground
B
Position B
Momentarily connect to Ground to set the card to
Position B
A
Position A
Momentarily connect to Ground to set the card to
Position A
7.3.
Gang Switching Applications