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Installation, cont'd
Connecting and Slaving a Switcher
One switcher can be connected (slaved) to the System 7SC to allow for a greater
number of inputs. The System 7SC serves as the master switcher, communicating
with and providing video output to the projector/display. The switcher ("slave")
that is connected to the System 7 provides up to ten (10) additional input
connections. See the illustration on the next page for a list of Extron switchers that
can be used as slaves.
To connect a slave switcher to the System 7SC, do the following:
1.
2-12
System 7SC • Installation
The default protocol is 9600 baud, 1 stop bit, no parity, and no flow control.
The rear panel RS-232 9-pin D connector has the following pin assignments:
Pin RS-232 function
1
–
2
Tx
3
Rx
4
Tx 2
5
Gnd
6
–
7
–
8
Rx 2
9
–
Pins 4 and 8 (Tx2 and Rx2) are used to communicate with a slaved switcher (if
one is connected). A slave adapter cable (Extron part #26-386-01) is required
for slaving. For details, see "Connecting and Slaving A Switcher" in this
chapter, and also see "Switcher Setup/Configuration" in chapter three.
A System 7SC cannot be used as a slaved switcher.
The RS-232 and video cable connections must be made between the slaved
switcher and the System 7 before the System 7 can be configured (via front
panel or RS-232) for slaving.
Do not attach any communications or control devices to the slaved switcher
except a contact closure remote control, if one is needed.
Connect the slave switcher's video and audio outputs to input 1 of the
System 7SC. See "Rear panel inputs", page 2-5, in this manual, and refer to
the slave switcher's user's manual for details on cabling.
Description
No connection
Transmit data
Receive data
Transmit data
Signal ground
No connection
DB9 Pin Locations
No connection
Receive data
No connection
5
1
9
6
Female
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