Extron Electronics HDMI 201 - Manual (Page 25)

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RS-232 connector — Connect a serial communications port to this 3.5 mm, 3-pole
captive screw connector for bidirectional RS-232 communication. See RS-232
connector wiring to wire the connector.
NOTE: The RS-232 connector can also transmit one-way modulated infrared (IR)
signals. See Modulated IR Pass Through Application .
k
Audio Input connector (HDMI 201 A D Rx [Decora] only) — Connect one
end of a 5-wire audio cable to this 3.5 mm, 5-pole direct insertion connector.
Connect the free end of the same cable to any compatibly wired audio source unit,
such as a output of a switcher or a HDMI 201 A D Tx (Decora) transmitter (
item f on
page 18).
Figure 19 shows how to wire the captive screw audio connector. Insert the wires into
the appropriate openings in the direct insertion connector. Tighten the screws on the
side to fasten the wires.
Tip
Sleeve
Sleeve
Tip
Unbalanced Input Balanced Input
Do not tin the wires!
Sleeve (s)
Tip
Tip
Ring
Ring
L
A
UDIO
OUTPUT
R
L
A
UDIO
OUTPUT
R
Figure 19. Captive Screw Connector Wiring for Receiver Audio Input
l
Output Audio — Plug an audio device into this pair, left and right, of female RCA
connectors ( figure 15 on page 17) for an unbalanced stereo audio signal.
Pin Assignments and Wiring
HDMI connector pin assignments
Figure 20 defines the pinout for the HDMI protocol.
Pin Signal
1 TMDS data 2+
TMDS data 2-
TMDS data 0–
TMDS clock- +5 V power
Hot plug detect
CEC control*
Reserved
(NC)
TMDS data 1+ TMDS clock+
TMDS clock
shield
SDA
DDC / CEC
Ground
TMDS data 2
shield
Pin Pin Signal Signal
2
7 13
4 10 16
11 17
12 18
19 * CEC control on pin 13 is a proprietary
usage, not the industry standard.
14
3 TMDS data 0-
TMDS data 0
shield
8
9 SCL 15
TMDS data 1-
TMDS data 1
shield
5
6
HDMI HDMI
Type A Receptacle Type A Plug
1
18 2
19
1
18 2
19
Figure 20. HDMI Connectors
HDMI 201 • Installation and Operation 21