Telex audiocom IC-1 REV J, IC-1F REV J User Manual

IC-I
AND
IC-I
F
GENERAL DESCRIPTION
The IC-1 and IC-1 F are single-channel, single- line intercom stations designed for use with dynamic headsets.
F
The IC-1 designed for permanent installation in an electrical pull box. The unit is connected to the intercom system by means of combination wire- wrap, screw clamp terminals.
Both the IC-1 and IC-1 F are available with and without light signalling capability. The light signal versions are distinguished by the presence of a Call Indicator Light on the front panel. For purposes of documentation, the light signal versions will be designated the IC-1/LS (an IC-1 with light signalling, and the IC-1 F/LS (an IC-1 F with light signalling).
Specifications apply to all versions unless otherwise noted.
Frequency Response:
Transmit: 150-7,000 Receive: 180-6,000
is a flush-mount version of the IC-1
SPECIFICATIONS
Hz
t1, -3 dB.
Hz
+1,
-3
dB.
Output Impedance:
Phones: 60 ohms (Unit is designed for use with 150-600 ohm phones.)
Output Power:
Phones: 75 milliwatts into 150 ohms. Line: 10 milliwatts (+I0 dBM).
Total Harmonic Distortion:
Transmit: 1% at 10 dBM. Receive: 1% at 75 milliwatts.
Common Mode Rejection:
Line: 40 dB at 60
Power Requirements:
Voltage: 24 Vdc nominal. Unit will operate on 12-30 Vdc. Current: No signal 12 milliamps (IC-1/LS, IC-1 F/LS). Average talk 20 milliamps (IC-1/LS, IC-1 F/LS). Signalling
Dimensions (without external connectors):
IC-1, IC-I/LS: 1.75 inches (44.45 mm) high
3.0 inches (76.2 mm) wide x 5.39 inches (136.9 mm) long. IC-IF, IC-1F/LS: 4.5 inches (114.3 mm) high x
4.62 inches (117.35 mm) wide x 2.5 inches (63.5 mm) deep behind front panel. If unit is
installed using screw-clamp terminals, wire- wrap pins may be cut off and depth reduces to
2.15 inches (54.61 mm).
-
Hz.
-
8
milliamps (IC-1, IC-IF),
-
12 milliamps (IC-1, IC-IF),
30 milliamps (IC-I/LS, IC-1 F/LS).
x
Equivalent lnput Noise:
Mic Input: 2 microvolts (-1 16 dBV) 150-7,000
Input Level:
Mic: 5 millivolts nominal, 12 millivolts
maximum.
Line: 1 volt (0 dBM) nominal, 4 volts (12 dBM)
maximum.
lnput Impedance:
Mic: Greater than 5,000 ohms. (Unit is
designed for use with 50-600 ohm phones).
Line: Greater than 10,000 ohms.
HZ.
Weight:
IC-1, IC-1/LS: 1.5 Ibs (0.51 kg)
Connectors:
IC-1/LS: One XLR-4M for headset connection. One XLR-3M and one XLR-3F, wired in parallel, for intercom line connection. IC-1 F, IC-1 F/LS: One XLR-4M for headset connection. Three combination screw-clamp, wire-wrap terminals for intercom line connection. Screw-clamp terminals accept No. 22 through No. 14 AWG stranded or solid wire.
INSTALLATION
IC-1 and IC-11LS
Permanent installation may be accomplished by removing the belt clip and utilizing the threaded belt clip mounting holes along with the additional threaded hole in the case to secure the unit to other equipment. These holes accept No. 6-32 machine screws. Screws may extend
3/16-inch into unit. These units may also be rack mounted using an RM-13 Rack Mounting Kit.
IC-1 F and IC-1 FILS
After running wires to the electrical box where the unit will be located, refer to the label on the rear cover of the unit and make connections as indicated. It is not necessary to observe polarity when connecting intercom line wires. Connect the power supply dc return wire to the SHLD terminal. If another set of wires is to be run from this unit to another intercom station, connect these wires at this time.
HEADPHONE VOLUME
CONTROL
MICROPHONE ON/OFF
IC-1 FRONT PANEL
HEADPHONE VOLUME
CONTROL
OPERATION
Headset Jack:
Accepts headsets with dynamic
microphone and dynamic headphone(s).
Headphone VOLUME Control:
Adjusts
headphone listen level. Does not affect mic level.
MICION Switch (IC-1, IC-IF):
In the MIC position, the microphone is shut off but the intercom line is still monitored by the phones. In
the ON position, the microphone is operational for two-way communication.
OFFIMICICALL Switch (IC-IILS, IC-1 FILS):
the
OFF
position, the microphone is shut off but
In
the intercom line is still monitored by the phones.
In the MIC position, the microphone is operational for two-way communication. In the CALL position, with the switch held continuously, an inaudible signal is sent to all other stations on
the line: on those stations with light signalling, the Call Indicator lights will illuminate. When
another station responds verbally, release the switch and it will automatically return to the MIC position for two-way communication.
Call Indicator LED (IC-1/LS, IC-1FILS):
Illuminates when station is being called. Does not illuminate when sending a call signal.
CALL INDICATOR LIGHT
IC-1ILS FRONT PANEL
INTERCOM LINE CONNECTORS
REAR PANEL
J
IC-1 Reference Guide
MICROPHONE
ON/OFF SWITCH
HEADPHONE VOLUME CONTROL
CONTROL
HEADSET CONNECTOR
MIC ON/OFFAND CALL SWITCH
IC-IF FRONT PANEL
IC-1FILS FRONT PANEL
-.---
IC-IF Reference Guide
MAINTENANCE
IC-1, IC-IILS Mechanical Exploded
2-4
View
IC-I, IC-IILS Mechanical Parts List
ITEM NO.
1
*
2 3**
4*
*
5** 6 7 8 9
10
11**
12** 13 14
15*
**
16
17
18
19*
* *
20 21
22
23 24
25
DESCRIPTION
Bezel Nut, Hex No. 3/8-32 LED Lens, LED Clip, Lens Mtg. Screw No. 4-40
x
!4
Connector, XLR-4M (J2) PCB Assembly, Audio Screw, No. 4-40
x
!4
Connector, 14-Position (J1) Pin, Snap In (Not Shown) Connector (J5) Pin, Snap In (Not Shown)
PCB Assembly, 20 kHz Light Signal
Screw, No. 4-40 x 1
!4
Spacer, Hex, 15/16-inch Switch, Toggle, SPDT (wlhardware) (S1) Switch, Toggle, SPDT (w/hardware) (S1)
Connector, XLR-3F (J3) Connector, XLR-3M (J4) Screw, No. 6-32 x
%
Housing, Remote Housing, Remote Clip, Belt Washer, Lock, Ext. Tooth, No. 6 Screw, No. 6-32 x
1/4
Potentiometer, IOOK, %W, +20°/o (R22)
Washer, Lock, Int. Tooth, No.
3/8
Chassis
PART NO.
95220-000 50033-001 58683-000 59739-000 53627-002 51 847-1 11 50994-004 92847-005 51 849-01 1 52264-01 4 54460-000 52264-007 54460-000
96080-000 51 845-046 6341 0-002 57481 -000 57481 -003 50995-003 50994-003 51 847-1 22 92874-003 92874-004 92873-001 50049-001 54993-074 571 45-001
5001 4-004
92854-000
92852,
92853.
Rev
Rev
*
Units without light signalling only.
**
Units with light signalling only.
F W
IC-1
F,
IC-1 FILS Mechanical Exploded View
2-6
IC-IF, IC-1FILS Mechanical Parts List
,/
-\d
ITEM NO.
DESCRIPTION
PART NO.
1 2 3 4 5*
*
6*
*
7
8
9* 10 11
12
13 14**
15
16*
* *
17*
* *
18 19 20 2 1 22
23 24
25
26**
27 28
Nut, Hex, No. 3/8-32 Collet Knob, Control
Cap Lens, LED
LED Screw, No. 4-40 x
!4
Connector, XLR-4M (J2) Bezel Screw, No. 6-32 x
3/8
Cover Plate, Front Bracket Washer, Lock, Int. Tooth, No.
4
Screw, No. 4-40 x 3/16 PCB Assembly, Audio Switch, Toggle, SPDT (w/hardware) (S1) Switch, Toggle, SPDT (w/hardware) (SI) Cover, Rear Cover, Rear Screw, 4-40
x
'/2
Spacer, 3/16 Ig Clip, LED Mtg. Potentiometer, look,
%W,
f20°/o (R22)
Connector, 14-Position (JI)
Terminal (Not Shown, For J1) Washer, Lock, Int. Tooth, No.
3/8
Connector, 7-Position (J5) Terminal, (Not Shown, For J5) Nut, Hex, No. 4
PCB Assembly, 20 kHz Light Signal
Angle Bracket
x
Screw, 4-40
!A
50033-001 53434-1 01 53432-1 16 53433-1 15 59739-000 58683-000 51 847-1 11 50994-004 9521 8-000 51 847-1 24
92857-000 92859-000 5001 4-002 51 845-037 92847-004 57481-000 57481 -003 92862-003 92862-004 51 845-041 57798-000 53627-002 571 45-000 52264-01 4 54460-000
5001 4-004 52264-007 54460-000 521 88-006
96080-000 9521 5-000 51 845-038
92863,
Rev
*Units without light signaling only.
**Units with light signaling only.
AB
92846.
Rev
R
IC-I Audio PCB Assembly Component Layout
96079.
Rev
H
IC-IILS, IC-IFILS
20
KHz Light Signal PCB Assembly Component Layout
2-8
IC-I
Audio
All resistors in ohms,
PCB Assembly Parts
1/4
watt, +5% unless otherwise noted.
List
All capacitors are in microfarads unless otherwise noted.
REFERENCE NO.
C1 C2,21 C5,11 C6,9,12 C7 C8,14
C13
C15 C16,23
C17 C18 C22
J
1
J
2
J
3
J
4
Q
1
R1
R 2
R3,4 R5,6,7,8 R9 R10 R11,15 R12,16 R13,18,19 R14,20 R17 R18,19 R22 R23
S
1 TI U 1 U2
DESCRIPTION
Capacitor, 1, 35V, Tantalum Capacitor, 0.01, 1 OOV
Capacitor, 10, 25V Electrolytic Capacitor, 0.1 Capacitor, 47 pF Capacitor, 100 pF Capacitor, 0.001 Capacitor, 220 pF Capacitor, 4.7, 25V Electrolytic Capacitor, 10, 10V Electrolytic Capacitor, 10, 50V Electrolytic Capacitor, 1, 50V Electrolytic Connector, 12-Pin Connector, XLR-4M Connector, XLR-3F Connector, XLR-3M Transistor, 2N2925 Resistor, 470 Ohm Resistor, 220 Ohm Resistor, 68K Resistor, 150K Resistor, 330 Ohm Resistor, 2.7K Resistor, 220K Resistor, 1 M Resistor, 100K Resistor, 47K Resistor, 2.7K Resistor, 1 OOK Potentiometer, 100K,
%W,
20% Resistor, 10K Switch, Toggle SPST Transformer IC, Low Noise Preamplifier, AN360
IC, Dual Low Noise Op Amp, NE5532
PART NO.
52257-049 521 57-251 51 821-020 52708-024 521 57-004 521 57-008 521 57-022 521 57-01 2 51 821-081
51 821-045 51 821-524 51821-106 52264-012 50994-001 50995-000 50994-000 51 547-000 521 54-289 521 54-297 521 54-237 521 54-229 521 54-293 521 54-271
521 54-225 521 54-209 521 54-233 521 54-241 521 54-271 521 54-233 571 45-002 521 54-257 57481 -000 56741 -000 53270-000
53295-000
92847,
Rev
Y
IC-I/LS, IC-IF/LS
All resistors in ohms,
All capacitors are in microfarads unless otherwise noted.
20
KHz
Light Signal PCB Assembly Parts List
'/4
W,
+5% unless otherwise noted.
REFERENCE NO.
C1,2,3 C4 C5,7,9 C6 C8 C10 C11 CR1
J
5 Q1,3 Q2 R1 R2,5 R3,15 R4 R6 R7 R8 R11 R12 R14 U
1
VR1
DESCRIPTION
Capacitor, Ceramic, 0.001, 50V, Capacitor, Ceramic, 100 pF, 500V, Capacitor, Tantalum, 0.1, 35V, f20°/o Capacitor NPO, Ceramic, 0.0022, 50V, k2% Capacitor, Electrolytic, 4.7, 25V, +20°/0 Capacitor, Electrolytic, 10, 25V, +20% Capacitor, Ceramic, 0.047, 25V, +80 -20% Diode, 1 N4148 Connector, 7-Position Transistor, 2N2925 Transistor, J175 Resistor, 2.2M Resistor, 1M Resistor, 20K Resistor, 1 OK Resistor, 62K Resistor, 1 OK Resistor, 47K Resistor, 24K, Resistor, Variable, 5K, Resistor, 1.2K,
Socket, &Pin
%W,
+2%
%W,
klOO/o
flOO/o
+lOO/o
PART NO.
52676-1 01 521 57-008 52257-065 35694-034 52723-01 3 52723-01 4 521 58-033 52228-000 57721 -007 51 547-000 54687-001 521 54-201 521 54-209 521 54-250 521 54-257
521 54-238 521 54-257 521 54-241 521 55-248 571 48-048 521 54-456 53258-000 51302-01 7 53041 -002
MICROPHONE PRE-AMPLIFIER 16V/19V LINE AMPLIFIER
I
I
HEADPHONE AMPLIFIER
--
NOTES:
1.
ALL RESISTORS IN OHMS,
2.
ALL CAPACITORS IN MICROFARADS UNLESS OTHERWISE NOTED.
3.
ALL VOLTAGES ARE DC MEASURED USING A HIGH IMPEDANCE METER UNDER NO-SIGNAL CONDITIONS WlTH CHASSIS AS REFERENCE.
4.
WHERE TWO VOLTAGES ARE INDICATED, THE FIRST IS WlTH A HEADSET CONNECTED AT J2 AND THE SECOND IS WITHOUT.
5.
--t-
6.
THIS SCHEMATIC SUBJECT TO CHANGE TO ACCOMMODATE DESIGN IMPROVEMENTS.
INDICATES RECEIVE SIGNAL PATH. INDICATES TRANSMIT SIGNAL PATH.
1/4
WATT,
+5%
UNLESS OTHERWISE NOTED.
I
'a
NOTES:
1. ALL RESISTORS IN OHMS, % WATT, f5% UNLESS OTHERWISE NOTED.
2. ALL CAPACITORS IN MICROFARADS UNLESS OTHERWISE NOTED.
3.
ALL VOLTAGES ARE DC MEASURED USING A HIGH IMPEDANCE METER WlTH CHASSIS AS REFERENCE.
4. WHERE TWO VOLTAGES ARE INDICATED, THE UPPER SIGNAL AT P5-4 AND THE LOWER IS WlTH 20 KHz AT 100 MV (CALL SIGNAL IN) AT P5-4.
5. ALL SINGLE VOLTAGES REPRESENT NO-SIGNAL CONDITIONS.
6.
20 KHz ADJUSTMENT: CONNECT FREQUENCY METER BETWEEN ANODE OF CR1 AND CHASSISADJUST R12 FOR A READING OF 20 KHz i100 Hz.
7.
THIS SCHEMATIC SUBJECT TO CHANGE TO ACCOMMODATE DESIGN
IMPROVEMENTS.
is
WlTH NO
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