Serial Port Hardware And Software - AKG CEQ1/1 Manual

8. Serial Port Hardware and Software

The serial port on the LecNet device is a minimal RS-232 implementation. The figure shows the
wiring diagram to accommodate interconnection with either a 9 or a 25 pin serial port on a PC or
other serial device.
LecNet Device to PC
S
R
3.5MM
T
Stereo Plug
Wiring Diagram, 9 Pin D-Sub
Tip LecNet Device Transmit
Ring LecNet Device Receive
Sleeve Gnd
LecNet Port
Wiring Diagram, 25 Pin D-Sub
Tip LecNet Device Transmit
Ring LecNet Device Receive
Sleeve Gnd
LecNet Port
S
9 or 25 Pin Female R
D-Subminiature
T
N/C CD 1
RX 2
TX 3
Host
DTR 4
Ring
Serial
Gnd 5
Port
Sleeve
DSR 6
(PC)
RTS 7
CTS 8
N/C RI 9
RX 3
TX 2
Sig Gnd 7
AMX Programming Notes
Host
Chassis Gnd 1
Serial
RTS
4 Port
If you are using an AMX system to control your
CTS (PC)
5
LecNet equipment, you'll want to purchase
DSR
6
the Lectrosonics PT3 Protocol Translator. The
DTR
20
PT3 connects between the AMX bus and any
LecNet equipment. With the PT3, the LecNet
equipment looks just like native AMX equip­
ment. The PT3 is the fastest and most produc­
tive way to control LecNet devices with an
AMX system.
Figure 5 - Serial Port Hardware
21
CEQ1/1 und CEQ1/1BB
LecNet Device to AMX or Crestron
3.5MM
Stereo Plug
LecNet Device Transmit
Tip
LecNet Device Receive
Gnd
LecNet Port
9 Pin Female
D-Subminiature
N/C
1
RXD
2
TXD 3
AMX
N/C
4
or
Gnd 5
Crestron
N/C
6
Port
N/C
7
N/C
8
N/C
9