User`s manual

MSW 4V rs and 4SV rs • Installation and Operation
Installation and Operation, cont’d
2-6
MSW 4V rs and 4SV rs • Installation and Operation
2-7
Switcher PC
Receive
Transmit
Ground
RS-232
Tx Rx NA
DB9 Pinout (Female)
To control equipment
5 1
9 6
Pin RS-232 Function
1 —
2 TX Transmit data (-)
3 RX Receive data (+)
4 —
5 Gnd Signal ground
6 —
7 — —
8 — —
9 — —
—
—
—
Figure 2-5 — RS-232 connector wiring
This port has the following RS-232 protocol:
• 9600 baud
• 1 stop bit
• No parity
• 8 data bits
See chapter 3, “Serial Communication”, for Simple Instruction
Set (SIS) commands to communicate with the MSW mini video
switcher via RS-232.
c
Contact connector — Connect a remote contact
closure device to the MSW for remote control
of the switcher, or daisy chain the unit to other
MSWs for remote control of the other switchers,
via this 5-pin captive screw connector.
N
The switcher must be in normal (manual) mode for contact
closure to work. See "Mode selection", later in this
chapter.
To select an input using a contact closure device, such as an
Extron CCR 204 contact closure remote control (part #60-794-02)
or a locally constructed device, momentarily short the pin for
the desired input number to logic ground (pin 5). To force one
of the inputs to be always selected, leave the short in place. The
short overrides any front panel input selections.
You can also daisy chain multiple MSWs via the Contact
connector for front panel control of all switchers; touch the input
button on one MSW to switch all MSWs. Wire pin 1 to pin 1,
pin 2 to pin 2, and so on.
d
S-video output (MSW 4SV rs) — Connect an S-video display
or other device to this 4-pin mini DIN connector for the S-video
output.
e
S-video Inputs 1 through 4 (MSW 4SV rs) — For each input,
connect an S-video source to one of these 4-pin mini DIN
connectors.
f
Composite video Inputs 1 through 4 (MSW 4V rs) — For each
input, connect a composite video source to one of these BNC
connectors.
g
Power connector — Plug the external 12 VDC power supply
into this 2-pin, 3.5 mm captive screw connector. The power
supply is included with the unit.
In the event that power is disconnected from the MSW, the unit
retains mode and input settings.
N
The power connector on the rear panel is orange; however,
the plug for the power cord may be either orange or
blue. Either color plug can be connected to the rear panel
receptacle.
To wire the connector, do the following:
1. Cut the DC output cord to the length needed.
2. Strip the jacket to expose 0.2” (5 mm) of the conductors for
the blue captive screw plug, or 0.3” (7 mm) for the orange
plug.
Power Supply
Output Cord
Orange Captive Screw
Connector
0.3” (7 mm) MAX
SECTION A–A
Ridges
Smooth
A A
Tie Wrap
Figure 2-6 — Power wiring
W
Exposing more than the amount of wire described
above could allow the stripped wires to touch each
other, causing a short circuit. This could result in
the external DC power supply overheating and/or
burning.
CONTACT
1
2
3
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