Clear-Com RLY-6 - Manual (Page 10)

Vitec Group Communications
RLY-6 Interface Instruction Manual
2 - 2
Then, plug the other end into the top RJ-45 (CH. A MATRIX) connector
additional RLY-6. (See Figure 2-1 on the next page.)
Additional RLY-6 interfaces are added in the same way, using
"daisy-chain" wiring. If there are multiple RLY-6 interfaces, the inputs
in the first interface are numbered 1 to 6 for RLY 1; in the second
interface 1 to 6 for RLY 2, etc. RLY interface 0 is the internal Matrix
RLY interface.
For Eclipse systems if both GPI-6 and RLY-6 interfaces are used the
GPI-6 interfaces are required to be placed first in the daisy chain. This
restriction does not apply to Matrix Plus 3 systems where interfaces
can be mixed in this 'daisy-chained' scheme.
The maximum combined length of all the RJ-45 cables should not
exceed 20 feet (6 meters).
TO EXTERNAL DEVICE
To connect external devices to the RLY-6 interface, use the two DB-9M
connectors on the rear cable assembly panel for the interface. Figure
2-2 shows the pin assignment of these connectors as viewed from the
frame side of the connector.
If a DB-9F is plugged into the connector labeled CH. A I/O, relays 1-3
are available on that connector. The connector labeled CH.A I/O has
the contacts for relays 4-6. In the Figure 2-2, the labels on the pins
apply to either connector. Example: #1/4 COM refers to the wiper of
relay 1 if it is connected to CH. A and the wiper of relay 4 if it is
connected to CH. B.