Telikou FM-804 User manual

TELIKOU Intercom System
FM-804 4-Wire Matrix Control Station
Instruction Manual
© TELIKOU Systems
All Rights Reserved

TELIKOU FM804 Eight Channel 4-wire Matrix Control Station
1
I. Introduction
Thank you for choosing TELIKOU intercom product. FM-804 is a eight channel four wire matrix
control station, the maximum can constitute 9 points full-duplex distributed intercom system, if
coupled with TELIKOU four wire extension unit, it can reach 17 points. FM-804 main station is
suitable for television station, communication center, UB truck, live performance and any other
environment which requires communication. We recommend you read through this manual to better
understand the functions of FM-804.
This system adopts wired connection, and has following features, stable and reliable performance,
flexible configuration, full-duplex communication, clear and loud communication sound, easy
operation, and strong noise resistance.
II. Basic operations
Front Panel
1. Panel Mic Connector
6.35mm unbalanced microphone jack. The microphone type can be dynamic or electric.
The definition of 6.35mm plug is as follow:
T-- Mic Hot
R-- Mic Common
S-- Shield
2. Headset connector
4-pin XLR Male or 5-pin XLR Female
EARPHONE: Dynamic 50-2000 ohm
MICROPHONE: Dynamic 100-600 ohm
TRS

TELIKOU FM804 Eight Channel 4-wire Matrix Control Station
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The wiring of headset is as follow:
Pin 1 -- Mic. common
Pin 2 -- Mic. hot
Pin 3 -- headphone+
Pin 4 -- headphone-
Pin 5 -- Null
3. Microphone Select Switch
Microphone select switch is used to select panel microphone or headset microphone.
4.Listen Level Control
Use this control to adjust the audio level which heard from FM-804 headset or panel speaker by
clockwise or counterclockwise direction.
5. ANN. Button
Send the activated microphone signal to ANN. Out connector which is at rear panel.
6. Talk & Talk LED
Button 1~8 corresponds to 1~8 channel. Press “TALK” button sent microphone signal to the
corresponding channel. It also lights its embedded LED and “LISTEN” button. Meanwhile a call
signal is sent into the channel.
Button operation mode:
PTT -- Hold the button
Latch -- Quick click the button. Press the button again will release the function.
7. ALL
Press this button. All “TALK”, “LISTEN” and “ANN” button are connected at same time.
8. Power (Power/Power LED)
This red LED will light when power supply switch is on.
9. Listen & Listen LED
Button 1~8 corresponds to 1~8 channel. Press the button to monitor the corresponding channel.
The embedded LED lights.
There is call signal from channel, LISTEN function is activated and listen LED lights.
Button operation mode:
PTT -- Hold the button

TELIKOU FM804 Eight Channel 4-wire Matrix Control Station
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Latch -- Quick click the button. Press the button again will release the function.
10. Aux Level Control
Adjust external audio level which goes into FM-804 by clockwise or counterclockwise direction
11.Panel Mic Gain
It is used to adjust the panel microphone gain. It has preset with electret microphone.
12. Extension Connector (DB9)
If station number is more than 9 in a system. An extension FM-804 can be connected through this
DB9 connector to make a 16 ports station. The max numbers of FM-804 in the system will be 17.
The definition of connector is as follow
Pin 1 --- Audio Output
Pin 2 --- Ground
Pin 3 --- Audio In
Pin 4 --- Ground
Pin 5 --- Control Signal
Pin 6 --- Ground
Pin 7 --- Ground
Pin 8 --- 12V/1A DC
Pin 9 --- 12V/1A DC
The extension FM-804 station can be powered by this DB9 connector.
13. Intercom Line connector
RJ-45 connector. The pin out of connectors is as follows:
Pin 1 --- Analog Ground
Pin 2 --- 12+VDC
Pin 3 --- Audio Input +
Pin 4 --- Audio Output +
Pin 5 --- Audio Output -
Pin 6 --- Audio Input -
Pin 7 --- Control Signal
Pin 8 --- Digital Ground
Note: When connect to any other TELIKOU 4-wire device. The RJ-45 connection cable should be
made as follow.

TELIKOU FM804 Eight Channel 4-wire Matrix Control Station
4
Orange White
Orange
Green White
Blue
Blue White
Green
Brown White
Brown
Orange White
Orange
Blue
Green White
Green
Blue White
Brown White
Brown
Shield Shield
14. Input Audio Gain Adjustment
The standard audio level is 1Vp-p. If input audio level is not proper, this knob is used to adjust the
audio gain.
Note: Must open the top cover to reach this top potentiometer. This W4 potentiometer is located at
the middle of circuit board. Turns potentiometer W4 by clock-wise direction with screw driver. The
audio level of channel 1-8 changes at same time. The audio level is 1Vp-p by factory set.
15. AUX Input
The external audio signal is sent into intercom line through this connector.
XLR-3F Pin out is as follow:
Pin 1 --- Ground
Pin 2 --- Audio Input +
Pin 3 --- Audio Input -
16. Announce Out
It sent microphone signal out through this connector.
XLR-3M Pin out is as follows:
Pin 1 --- Common (Shield)
Pin 2 --- Audio Output +
Pin 3 --- Audio Output -
III：Troubleshooting
Problem
Cause
Solution
Power LED
wink
Short circuit inside
Send them to dealer for
repairing
Excessive
crosstalk
1. High DC resistance at cable end.
2. Headset cables are not well connected
1. Press and connect the RJ-45
plug again
2. Check and connect again
Hum or
1. Without connecting to ground or bad
1. Do earthing well。

TELIKOU FM804 Eight Channel 4-wire Matrix Control Station
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Buzz
earthing
2. Inductive pickup caused by close proximity of
this main station or connected remote stations to
power lines or transformers.
3. Headset cable is not wired properly.
The shield of microphone cable is not connected
well to Pin 1.
2. Relocate the offending unit.
3. rewire or change the
cable.
channel
volume is
too low
or distortion
Outside signal level too small or too large
Adjust input level at the rear
panel.
IV Technical Specification
Bandwidth: 300Hz-4000Hz ±3dB
Earphone impedance: Dynamic 50-2000ohm
Microphone impedance: Dynamic 100-600ohm
Input Audio Level: 1Vp-p
Output Audio Level: 1Vp-p
Connector Input Impedance: >10Kohm
POWER SUPPLY:
90~240VAC, 50~60Hz;
ENVIRONMENTAL:
0° - 70°C（32°-158°F）
DIMENSION:
19” (W) x1.75” (H) x9.48” (D), 482mm x 44.5mm x 241mm
WEIGHT:
2.8kg