Instruction Manual
223C Series Tone-Remote Adapters
098-0347 Rev. B
2 223C Series
Table of Contents
General............................................................................................................................................................................2
Operation......................................................................................................................................................................2-3
Installation .......................................................................................................................................................................3
Tuning..............................................................................................................................................................................3
Level Adjustments........................................................................................................................................................3-4
Theory of Operation.....................................................................................................................................................4-6
Warranty and Claims.......................................................................................................................................................6
Specifications ..................................................................................................................................................................6
Parts List......................................................................................................................................................................6-8
General
The Vega 223C Series tone-remote adapters provide a reliable means of remotely controlling two-wayradio base stations. The adapters can be used in conjunction with Vega Models C-510C/C-511/C-512 (twofrequency), Model C-514B (four-frequency), Model C516 (six-line/two-frequency), Model C-1614 (sixline/four-requency, and Model C-5110/C-5111/C-5112
(ten-line/four-frequency) tone-remote control consoles,
or other manufacturers' (such as Motorola and GE) remote consoles which use the industry-standard sequential tone keying format.
The basic PC board in each adapter is the Model
223C, which provides PTT and monitor functions only,
on one operating frequency. A Model 224B expansion
board is added for every two frequencies. The first
224B plugs into an edge of the 223C, the second 224B
into the first 224B, and so on, in a chain. The 223C Series PC boards and adapters are available in the following models:
MODEL DESCRIPTION
223C/PCB PC board (no case); PTT/monitor only;
two-wire half-duplex) or four-wire (half-
duplex or full-duplex)
224B/PCB Two-frequency expansion PC board
RC-223C Encased single-frequency/PTT/monitor
transmit/receive adapter; includes com-
pact case (1.75 in H, 9.25 in W, 7.25
in D) and Model 223C PTT/monitor PCB
RP-223C Same as RC-223C, but in rack-mounting
case (1.718 in H, 19 in W, 6.5 in D)
RC-223C-2 Encased two-frequency/PTT/monitor
adapter; includes compact case, Model
223C PTT/monitor PCB, and Model 224B
two-frequency expansion PCB
RP-223C-2 Same as RC-223C-2, but in rack-
mounting case
RP-223C-4 Encased four-frequency/PTT/monitor
adapter; includes rack-mounting case,
Model 223C PTT/monitor PCB, and two
Model 224B two-frequency expansion
PCBs
RP-223C-6 Encased six-frequency/PTT/monitor
adapter; includes rack-mounting case,
Model 223C PTT/monitor PCB, and
three Model 224B two-frequency expan
sion PCBs
RP-223C-8 Encased eight-frequency/PTT/monitor
adapter; includes rack-mounting case,
Model 223C PTT/monitor PCB, and four
Model 224B two-frequency expansion
PCBs
Options
LPO-1 Lightning and transient protection on-line
interface
TO-23 Transformer isolation on transceiver
interface
Operation
The 223C Series adapters are interconnected to the
distant remote control console(s) by any voice-grade
transmission medium such as a microwave link, a
leased telephone line, or a twisted-pair 600-ohm line.
All 223C Series adapters are capable of decoding
the PTT (push-to-talk/transmitter-on) tone sequence
and the voice-plus-tone signals during transmission.
The tone portion of the voice-plus-tone signal is removed from the transmitted voice. All models are prepared for jumper-plug conversion from two-wire-line
operation to four-wire-line operation. In the four-wire
mode, the panels also may be jumper-plug converted
to full-duplex operation.
The “monitor” function provided in all 223C Series
adapters decodes the valid tone sequence and provides relay-contact output to turn off the subaudibletone-decoder circuit in the radio receiver, allowing the
console operator to monitor the channel for other users
before he transmits (required by FCC regulations on
stations equipped with continuous-tone-coded-squelch
signaling). On single-user stations not equipped with
subaudible signaling, or where the CTCSS decoders
are disabled, the monitor function relay output may be
used for any purpose such as interrogation of a
status-reporting system at the station site. The monitor
function may be programmed to operate in one of three
modes:
Tone-Remote Station Adapters 3
(1)
Timed mode
monitor function for a timed period (adjustable up to at
least 9 seconds) or until a PTT command is decoded.
Latched mode,
(2)
command until reset by a PTT command.
Refreshable timed mode,
(3)
monitor function for a timed period upon any tone-burst
command. Any command received during the timed period refreshes the timer for another full timer period.
The frequency-select function is provided in all models using the 224B/PCB expansion PC board(s). The
number of commandable frequencies varies from two
to eight, depending upon the model chosen. As
shipped, one of the frequency-select relays is always
latched on, and, upon decoding a frequency-select
command, the latched relay is reset and the relay associated with the command is latched on (1-of-N
mode).
The frequency-select function may also be used for
other purposes. For example, a pair of “frequencyselect” outputs may be used to activate and deactivate
a status or alarm system at the panel site, or may be
used for scan-on/scan-off purposes.
Frequency-select relays may be programmed (in
pairs only) by solder bridges to provide two or more independently interlocked groups. Any pair of frequencyselect relays may also be programmed for momentary
operation.
Installation
Connect an external 10 to 16 volt semiregulated DC
power supply to the terminal board, with negative to
TB1-17 and positive to TB1-18.
Connect the two-wire leased line to TB1-5 and
TB1-6. For four-wire operation, move JP6 to B, connect
the outgoing line to TB1-5 and TB1-6, and connect the
incoming line to TB1-7 and TB1-8. Also move JP4 to B
if full-duplex operation is desired.
Connect TB1-3 to the transmitter mic audio input,
and TB1-4 to the transmitter mic audio return. If the
TO-23 radio-interface isolation transformer option is not
installed, set JP12 and JP13 both to the “A” position. If
the TO-23 option is installed, set JP10 and JP11 both
to the “B” position.
If the mic input is a high-impedance type, shielded
cable is recommended. If the radio has a high-level mic
input, move JP7 to the “B” position.
Connect the radio receiver audio output to TB1-1
and TB1-2. This must be an audio source after the
squelch circuit, to prevent sending continuous noise to
the remote console(s). If the radio receiver audio output
is single-ended and the TO-23 option is not installed,
be sure that the “low” or “grounded” side of the radio
receiver audio output is connected to TB1-2. If the
TO-23 option is not installed, set jumpers JP12 and
JP13 both to the “A” position; if the TO-23 option is installed, set jumpers JP12 and JP13 both to the “B” position.
If a high-impedance point in the receiver is used,
shielded cable is recommended. If the speaker output
is used, move JP5 to B. Note that when the speaker
output is used, the radio volume control will affect the
audio output level at TB1-1.
(as shipped), which provides the
which latches upon a monitor
which provides the
Connect the radio PTT circuit to the PTT relay con-
tact terminals of the panel. Refer to the schematic.
Connect the radio “monitor” circuit to the MON relay
contact terminals. Refer to the schematic.
With all models except 223C/PCB, RC-223C, and
RP-223C, connect the radio-frequency control circuits
to the function-control relay output terminals on the
small (224B/PCB) PC board(s). Usually the common of
each relay contact switch is grounded and the normally
open contact connects to the radio frequency-control
terminals. Refer to the schematic.
A few radios (such as some GE models) have separate transmitter and receiver frequency controls. Use
the above connections for transmitter frequency controls and connect the receiver frequency controls to the
second set of relay contacts available at solder-pad terminals. Refer to the schematic.
Relay/LED defeats and active-low open-collector
logic outputs have been provided for special installations. Refer to the schematics.
Transient protection has been provided near all
audio inputs and outputs. This is adequate for transients up to at least 100 volts, but external transient
protection such as gas-discharge or MOV devices
should be installed to provide some protection from
very high voltage transients such as from lightning.
For additional protection, provisions have been made
on the 223C PC board for installation of the LPO-1 option consisting of Vega #146-0005 gas-discharge-tube
protectors or MOV devices such as GE #V100ZA15
(one gas tube or three MOVs per line). An earth-ground
terminal is also provided.
Vega will not replace units under warranty that have
obvious high-voltage damage such as vaporized PCboard traces or melted components.
The RC/RP-223C line transformers are not designed
to operate on lines carrying direct current. If a DC voltage is on the line, isolate with external capacitors. If the
line termination must conduct direct current, install a
600:600-ohm transformer designed for the current involved.
Tuning
All models have been factory-tuned to the following
frequencies, and for normal applications require no tuning:
Guard tone/PTT Tone: 2175 Hz
MON Function Tone: 2050 Hz
Frequency Select Function Tones (where used)
F1: 1950 Hz F5: 1550 Hz
F2: 1850 Hz F6: 1450 Hz
F3: 1750 Hz F7: 1350 Hz
F4: 1650 Hz F8: 1250 Hz
For special applications using other than standard
frequencies, special order from the factory.
Level Adjustments
Level adjustment normally are required only at the
time of installation or due to base-station changes.
4 223C Series
Important: All test points have DC bias on them.
Use the “output” AC terminals and scales on your meter, which places a DC blocking capacitor in series with
the meter.
1. Line Drive Adjustment
Unsquelch the receiver so that continuous noise is
present. Connect the meter to TB1-5 and TB1-6 (line
should also be connected) and adjust R94 (line output
level) for the desired line level (usually 0 dBm or 0.8
Vrms).
2. Transmit Level Adjustment
Disable transmitter PTT circuit. Adjust R92 (line input level) to full clockwise. Have the remote control
console send a continuous PTT command (no voice or
loud room noise). The panel should respond by energizing the PTT relay and lighting the PTT LED. Adjust
R92 (line input level) fora1to1.1Vrms reading at
TP11 If the reading is lower, set R92 to maximum. Key
the remote control panel several times to insure reliable
operation of the PTT relay.
Enable the transmitter PTT circuit and monitor its
deviation.
Have the remote control console send a PTT command plus voice. The PTT relay and the PTT LED
should remain energized. With voice (or a 1-kHz test
tone) coming from the remote control console, adjust
R93 (modulation output level control) for proper deviation.
3. Monitor Adjustments
Momentarily jumper TP2 to TP10 (GND). The monitor relay and monitor LED should light for a timed period. Adjust R46 (monitor time) for the desired monitor
period. Repeat as required. IF latched monitor operation is desired, move JP1 to B. If refreshed monitor operation is desired, change JP1 to A, JP2 to B, and JP3
to B.
Have the remote control console send a monitor
command and check for proper operation.
Theory of Operation
Voice Circuits
In the “PTT ON” condition, the voice-signal audio
path is from the line through TB1-5 and TB1-6, T1 and
JP6-A (two-wire), or through TB1-4 and TB1-5, T2 and
JP6-B (four-wire), U14A-3,-1, U11D-8,-9, R70,
U15A-2,-1, R93, U15B-5, U10B-3,-4, C30, and R79 to
the TX audio output terminal TB1-3. At the PTT tone
frequency (2175 Hz), audio from U11D-9 also passes
through the U14B,C,D bandpass filter and is applied to
U15A-2 180° out of phase, and at equal amplitude to
the signal path through R70. This results in a deep
notch at 2175 Hz and effectively eliminates the PTT
tone signal.
In the receive condition, the receiver audio path is
from TB1-1 through the line-output-level control R94,
U15C-10,8-, U11C-11,10-, R70, U15A-2,1-, U11A-2,1-,
U13, and T1 to the line at TB1-5 and TB1-6. In the
full-duplex mode (JP4 to B), the path is from U15C-8
through U11B-4,3 to U13.
2175-Hz Decoder Circuits
The tone sequence generated at the remote-control
console upon PTT switch operation typically is 2175 Hz
at +10 dBm for 130 ms (guard tone), followed by a
function-tone frequency at 0 dBm for 40 ms, followed
by 2175 Hz at –20 dBm (PTT holding tone) for the duration of PTT-switch operation.
The guard-tone and PTT-tone signal path is from
the line through T1 and JP6-A (two-wire) or T2 and
JP6-B (four-wire), input level control R92, prefilter
stage U5D-12,14-, first bandpass filter U5C,A,B, and
second bandpass filter U4C,B,A to the 2175-Hz detector U1B.
Logic Circuits
CMOS logic is used in these circuits. When the term
“low” is used, the DC voltage is near ground potential.
When the term “high” is used, the voltage is near +9
Vdc.
When the first 2175-Hz tone (guard tone) is detected, TP1 goes low, disabling the receive analog
gates and enabling the transmit analog gates through
U6A-1,2,3 and U7B-2,9. The PTT circuit, however, is
not energized due to the high at U6B-6.
The high-to-low transition at TP1 also triggers the
240-ms timer at U2A-5, causing U2A-6 and U10A-13 to
go high. This enables the audio path from JP6 through
U14A-3,1-, U4D-12,14, and U10A-2,1 to the monitor
decoder U3B,C,D and all other function-tone decoders
which may be connected to P1-3.
In all models except 223C/PCB, RC-223C, and RP223C, a frequency-select function tone is always decoded during a PTT command toneburst. A low from
this function-tone decode at P1-5 triggers a 50-ms
timer at U8A-5. Upon timeout of the 50-ms timer, a
62-ms timer is triggered at U8B-12. U8B-9 goes low
and, if TP1 has again gone low due to the presence of
PTT tone, the PTT relay K2 is energized from U6B-4
through U9C-3,14. The U8B-9 and the TP1 lows also
hold U8B-14 low through U6C and U12A. This U8B-14
low disables timeout of the 62-ms timer by holding capacitor C18 in a discharged condition.
When TP1 goes high from the absence of PTT tone
(the console operator has released the PTT switch),
the timing capacitor C18 charges to the timeout voltage
in 62 ms and the PTT relay is deenergized. When the
62-ms timer times out, a new PTT command toneburst
is required to energize the PTT relay; however, if a
PTT tone returns before timeout of the 62-ms timer, the
PTT relay reenergizes. This minimizes PTT losss from
high-level noise transients or from microwave-link flutter. The analog gates are maintained in the transmit
condition during operation of the 50-ms and 62-ms timers by highs at U7B-1,8 from U8B-10 and U8A-6.
In Models 223C/PCB, RC-223C, and RP-223C no
frequency-select decoders are included, and there is
no decode pulse to trigger the 50-ms timer U8A. The
auto-select-223 P1-8 pin which is shorted to ground by
a 224B frequency-select decoder is high through R54
on models without frequency-select decoders. This
high enables U10D, which causes U2A to time out in
150 ms and allows U9B-15 to go high upon timeout of
the 150-ms timer. This low-to-high transition triggers
the 50-ms timer at U8A-5 through U9G-7,10.
Tone-Remote Station Adapters 5
If a function command only was sent (no PTT tone
after the function tone), no low appears at TP1 during
the 62-ms timing period of U8B, and the decode logic
returns to the initial state awaiting the next command
sequence.
Monitor Function Decoder
When a monitor-function command is sent, the
guard-tone detection at TP1 triggers the 240-ms timer
U2A, which enables audio-signal passage through analog gate U10A. U4D and U3A are both high-gain
stages and, therefore, the function-tone signal at U3A-1
is a rail-to-rail squarewave. The squarewave functiontone signal from U3A-1 is applied to the monitor bandpass filter U3B,C,D through R32. Monitor-bandpassfilter output is rectified by CR3 and, after filtering, is applied to comparator opamp U1A at U1A-3. U1A-1 goes
high, triggering the 50-ms timer at U8A-5 through
U9F-6,11. Upon 50-ms timer timeout, the 62-ms timer
is triggered, but, since TP1 is high due to the absence
of PTT tone, the PTT relay is not energized.
The low-to-high transition at U1A-1 triggers the
monitor timer U2B at U2B-12 through R31. U2B-10
goes high and energizes the monitor relay K1 through
U9A-1,16 for a timed period. If a PTT command is
de-coded before timeout of the monitor timer, the high
at U6B-4 resets the monitor timer at U2B-13 through
R47 and U6D-12,11.
In the latched mode of operation, JP1 is in the B
position, and, when U2B is triggered, U2B-7 goes low,
effectively short-circuiting the C16 charging path
through R30, R28, and R46, preventing C16 from
charging to timeout potential. Upon a PTT command,
U6B-4 goes high and resets the monitor latch at U2B13 through R47 and U6D-12,11. U2B-10 goes low and
monitor relay K1 is deenergized.
In the refresh-monitor-timed mode of operation with
JP1 to A, JP2 to B, and JP3 to B, upon the decode of
any valid command, TP7 goes high, triggering the
monitor timer at U2B-12 through JP3. A PTT command
will not reset the timer in this mode, because the reset
path is short-circuited by JP2.
224B/PCB Function-Tone Decoder Module
Operation of the frequency-select function-tone decoders is identical to that of the monitor-function decoder, except that the frequency-select decoders are
tuned to a different frequency.
The decoder output at U3A-1 is a high which is applied as a low to the F1-latch set input at U4A-1
through U5A-1,18. Simultaneously, a low is applied to
the F1 latch reset input at U4B-6, and, if JP2 is in the
2-WIRE LINE
IN/OUT
4-WIRE LINE
ROMANS
4-WIRE LINE
INPUT
PRE-FILTER
LIM
AMP
TIMER
2050Hz
FILTER
1950Hz
FILTER
1850Hz
FILTER
MODEL RC-223C-2
MODEL RC-223C-2
MODEL RP-223C 4/6/8
MODEL 224B/PCB MODULE
AMP
DETECTOR
DETECTOR
DETECTOR
RX
2175Hz
FILTER
TIMER
RESET IN/OUT LINE
ANY VALIDDECODE
NOTCH
FILTER
SF1
RLATCH
SF2
RLATCH
TX
2175Hz
FILTER
TIMER
HOLD
S MONITOR
TIMER/LA TCH
PWR
RX
DETECTOR
FULL DUPLEX
PWR
AMP
AMP
RX
TX
AND
TX
DVR
DVR
DVR
DVR
*
*
RELAY
RELAY
RELAY
RX AUDIO
TX AUDIO
PTTRELAY
MONITOR
F1
F2
UPTOTHREE ADDITIONAL 224B/PCB MODULES FOR F3 TO F8
224B/PCB
MODULES
ADDITIONAL
*RX AUDIO ,TX AUDIOTRANSFORMERS ARE OPTIONAL
RC-223C/RP-223C block diagram.
RC-223C/RP-223C
6 223C Series
223C Series Specifications
Operating Temperature Range: –20 to +55°C
for full specifications; –30 to +70°C with reduced
specifications
Power Requirements: +10 to +16 V
semiregulated
Models 223C/PCB, RC-223C, RP-223C: 55 mA
idle, 110 mA maximum at 12 V
Models RC-223C-2, RP-223C-2: 125 mA idle, 175
mA maximum at 12 V
Model RP-223C-4: 145 mA idle, 195 mA maximum at 12 V
Model RP-223C-6: 165 mA idle, 215 mA maximum at 12 V
Model RP-223C-8: 185 mA idle, 235 mA maximum at 12 V
Add 50 mA maximum for refresh MON operation and 50 mA for each additional relay
“on” in non-1-of-N mode
Relay Contact Ratings: 2 A, 30 V
Radio Interface: ±45 V
LinetoTXOutputGain:–26to+16dBintomicinput
loador –10 to +22dB into 600-Ωload,adjustable
TX Output Level: –60 to –18 dBm (for mic-level
output) or –40 to +2 dBm into 600-Ω load,
adjustable
TX Output Impedance: 22 Ω TX ON, typical; 22
kΩ TX OFF, typical
RX Input Level: 100 mV
Audio Distortion: 2% THD maximum
Frequency Response: ±1.5 dB, 300 to 3000 Hz,
except at transmit notch frequency
Line Output Level: –30 to +12 dBm, adjustable
dc
dc
dc
dc
(1 of 4)
(1 of 6)
(1 of 8)
dc
dc
withstand rating
dc
to 16 V
rms
maximum
, adjustable
rms
dc
Line Input/Output Impedance: 600 Ω nominal
Sensitivity: Ultimate sensitivity, –60 dBm PTT tone
Noise Tolerance (5-kHz-bandwidth white noise):
To 18 dB above PTT tone level at ultimate
,
sensitivity
Frequency-Select Function Tone Decoder
Tuning Range: 1225 to 2025 Hz, continuously
adjustable
Function-Tone Detection Bandwidth: 45 Hz ±
12 Hz, frequency-select tones; 30 Hz ± 6 Hz, MON
function tone
MON Timer: 1 to 10 s, typical, adjustable
PTT Tone Detect Bandwidth: 50 Hz, typical, with
sensitivity set 12 dB above threshold of detection
Tone-Detect Stability: ±0.3%, –20 to +55°C;
±0.4%, –30 to +70°C
Notch-Frequency Rejection: 45 dB minimum
Notch-Frequency Bandwidth: 70 Hz at –3 dB
points, typical; 1.0 Hz at –40 dB points, typical
Dimensions
Model 223C/PCB: 5.3 in (13.5 cm) W, 5.9
in (15 cm) D, 1.0 in (2.54 cm) H
Model 224B/PCB: 1.8 in (4.6 cm) W, 5.9 in
(15 cm) D, 0.85 in (2.16 cm) H
Model RC-223C/-2: 9.25 in (23.5 cm) W,
7.25 in (18.4 cm) D, 1.75 in (4.4 cm) H
Model RP-223C-2/4/6/8: 16.6 in (42.2 cm)
W, 6.56 in (16.7 cm) D, 1.72 in (4.37 cm) H
Non-Relay Outputs (internal relay defeated):
Open collector, active low, 200 mA maximum, 50
V maximum
A position as shipped, to the reset input of all other
frequency-select function-tone decoders through
U5B-4,15, JP2A, and J6-6 or P6-6.
When simultaneous set and reset inputs are applied
to the F1 latch, set dominates at the Q output and the
high at U4A-3 energizes the F1 relay through
U5G-7,12. Simultaneously, the reset low applied to the
F2 latch and all other connected latches resets the previously set latch. On the trailing edge of the F1 detect
pulse, the reset pulse to the F1 latch and all other connected latches terminates, but the low to the set input
of the F1 latch remains a few microseconds longer due
to the time constant of R28 and C14. This insures that
latch F1 will remain in the set condition.
If the JP2 jumper plug is in a no-bridge condition
(hang on one side), F1 will reset F2 and vice versa, but
other function-tone boards are unaffected. This allows
operation with more than one 1-of-N group in multiple-function-tone-board operation.
If JP2 is in the B position, a continuous reset low is
applied to both the F1 and F2 latches. Upon termination
of the F1 or F2 function-tone decode pulse, the latch is
therefore reset. This momentarily energizes the relay for
about 30 ms.
Warranty (Limited)
All Vega signaling products are guaranteed against
malfunction due to defects in materials and workmanship for three years, beginning at the date of original
purchase. If such a malfunction occurs, the product will
be repaired or replaced (at our option) without charge
during the three-year period, if delivered to the Vega
factory. Warranty does not extend to damage due to improper repairs, finish or appearance items, or malfunction due to abuse or operation under other than the
specified conditions, nor does it extend to incidental or
consequential damages. Some states do not allow the
exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you.
This warranty gives the customer specific legal rights,
and there may be other rights which vary from state to
state.
Tone-Remote Station Adapters 7
Claims
No liability will be accepted for damages directly or
indirectly arising from the use of our materials or from
any other causes. Our liability shall be expressly limited
to replacement or repair of defective materials.
223C/PCB Parts List
Ckt
Part No. Description Sym
012-0068 PCB ASSY 223C/PCB
031-0211 TEST SPEC 223C/224B
065-0449 PCB 223C
071-0560 SCHEMATIC 223C
098-0347 MAN INST RC/RP/223C/224B
102-0060 CAP CER 6.8P S2L 5% 50V C6
102-0290 CAP CER 100P S2L 5% 50V C19
104-0408 CAP TANT 1MF 35V C1
C2
C3
C5
C17
C18
104-0748 CAP TANT 10MF 10V C 4
105-1011 CAP MYLAR .047MF 10% 100V C25
105-1116 CAP MYLAR .0047 UF 1% C20
C21
110-1320 CAP CER .001MF 20% 50V C27
C28
110-1340 CAP CER .1MF SMALL C11
C22
C29
110-1345 CAP CER .0022MF 5% NPO C7
C8
C10
C13
C14
C15
C23
C31
112-1606 CAP ELEC 10MF 25V C26
C34
112-1608 CAP ELEC 1.0MF 20% 25V C 9
C24
C36
112-1613 CAP ELEC 220MF 20% 16V C35
112-1671 CAP ELEC 22MF 16V 10%RD C16
112-1676 CAP ELEC 100UF 16V C12
C32
C33
112-1681 CAP ELEC 2.2UF 50V NP C30
130-0533 RES VAR 500K HOR MT LIN R46
130-0639 RES VAR 10K H-MTG PCB R11
R20
R24
R81
130-0673 RES VAR 10K 20T 3/8SQ R80
130-0725 RES VAR 10K LOG PC HADJ R92
R93
R94
131-1853 RES WW 68 5% 2W R86
132-0004 RES RN55C 32.4K 1% 1/4W R13
R17
R19
R23
R34
R37
R38
R41
R43
R64
R68
R70
R71
R72
R73
134-0195 RES RN55D 100K 1% 1/4W R1
R3
R29
R85
134-0212 RES RN55D 10.0K 1% 1/4W R7
R12
134-2837 RES RN55D 15.0K 1% 1/4W R4
R96
134-2852 RES RN55D 16.2K 1% 1/4W R42
134-2874 RES RN55D 182.K 1% 1/4W R82
134-2877 RES RN55D 20.0K 1% 1/4W R16
R18
R35
R36
R40
R44
R67
R74
134-2885 RES RN55D 562. 1% 1/4W R66
134-2886 RES RN55D 332 1% 1/4W R33
134-2887 RES RN55D 27.4K 1% 1/4W R2
R6
R91
134-2892 RES RN55D 60.4K 1% 1/4W R32
R56
134-2947 RES RN55D 249K 1% 1/4W R25
134-2954 RES RN55D 9.53K 1% 1/4W R88
134-2991 RES RN55D 10.5K 1% 1/4W R10
134-3021 RES RN55D 475 1% 1/4W R27
134-3035 RES RN55D 8.66K 1% 1/4W R26
R90
134-3036 RES RN55D 274 1% 1/4W R39
134-3038 RES RN55D 976 1% 1/4W R45
134-3042 RES RN55D 31.6K 1% 1/4W R8
134-3046 RES RN55D 28.7K 1% 1/4W R69
136-0003 RES COMP 8.2 5% 1/4W R77
136-0015 RES COMP 39 5% 1/4W R78
136-0020 RES COMP 100 5% 1/4W R62
136-0022 RES COMP 150 5% 1/4W R65
136-0027 RES COMP 390 5% 1/4W R79
136-0030 RES COMP 680 5% 1/4W R95
136-0032 RES COMP 1K 5% 1/4W R5
R21
R75
R83
R87
R89
136-0034 RES COMP 1.5K 5% 1/4W R50
136-0040 RES COMP 4.7K 5% 1/4W R53
R55
136-0044 RES COMP 10K 5% 1/4W R58
R59
R61
R63
136-0048 RES COMP 22K 5% 1/4W R15
R28
R30
R31
R47
R48
R51
R52
R54
R57
R60
136-0062 RES COMP 330K 5% 1/4W R22
136-0066 RES COMP 680K 5% 1/4W R14
136-0282 RES COMP 51K 5% 1/4W R49
136-0288 RES COMP 160K 5% 1/4W R9
136-1953 RES COMP 62K 5% 1/4W R76
R84
161-0366 DIODE 1N4003 CR11
161-0426 DIODE 1N4148 CR1
CR10
CR2
CR3
CR4
CR5
CR6
CR7
CR8
CR9
161-0573 DIODE LED T1 3/4 RED DIF DS1
DS2
180-0321 RELAY DPDT PCB 12V K1
K2
286-1766 CONN JUMPER PLUG JP1A
JP2A
JP3A
JP4A
8 223C Series
JP5A
JP6A
JP7A
JP8A
JP9A
286-1768 PIN TEST POINT TP10
TP11
286-1772 CONNECTOR 36PIN STRIP TIN JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
286-1808 CON PCB 36 PIN 90 DEG P1
286-1934 TERM STRIP 18PIN MINI TB1
318-0246 XFORMER 10K CT-10K CT T2
318-0259 XFORMER 600CT-600CT T1
425-0157 IC CMOS 4001 QUAD 2NOR U6
425-0181 IC OPAMP TL084 QUAD BFET U3
U4
U5
U14
U15
425-0202 IC OPAMP 5532 DUAL RL600 U13
425-0204 IC CMOS 4025 TRIP 3NOR U7
425-0215 INT CKT ULN2004A U9
U12
425-0230 IC OPAMP LM358 DUAL U1
425-0411 IC 4538 DUAL MONO U2
U8
425-0452 INT CKT LM2931T ADJ REG U16
425-0461 IC HCMOS 74HC4066 QUADSW U10
U11
484-0102 STANDOFF 4-40 X 1/8 ROUN
224B/PCB Parts List
012-0044 PCB ASSY 224B/PCB
031-0211 TEST SPEC 223C/224B
065-0420 PCB 224B
071-0538 SCHEMATIC 224B
104-0408 CAP TANT 1MF 35V C7
C8
C9
C10
105-1099 CAP MYLAR .01MF 10% 100V C13
C14
110-1340 CAP CER .1MF SMALL C6
C12
110-1345 CAP CER .0022MF 5% NPO C1
C2
C3
C5
112-1606 CAP ELEC 10MF 25V C4
C11
130-0673 RES VAR 10K 20T 3/8SQ R1
R6
134-0195 RES RN55D 100K 1% 1/4W R23
R25
134-0212 RES RN55D 10.0K 1% 1/4W R14
R15
R19
R20
R21
R27
R28
R29
134-0312 RES RN55D 150.K 1% 1/4W R5
R10
134-2852 RES RN55D 16.2K 1% 1/4W R4
R9
134-2887 RES RN55D 27.4K 1% 1/4W R24
R26
134-2916 RES RN55D 16.9K 1% 1/4W R3
R8
134-2946 RES RN55D 953. 1% 1/4W
R22
134-2985 RES RN55D 64.9K 1% 1/4W R11
R12
R16
R17
134-2990 RES RN55D 6.65K 1% 1/4W R2
R7
134-3037 RES RN55D 442 1% 1/4W R13
R18
136-0032 RES COMP 1K 5% 1/4W R30
R31
161-0426 DIODE 1N4148 CR1
CR2
CR3
CR4
CR5
161-0573 DIODE LED T1 3/4 RED DIF DS1
DS2
180-0321 RELAY DPDT PCB 12V K1
K2
286-1766 CONN JUMPER PLUG
286-1768 PIN TEST POINT TP1
TP2
286-1772 CONNECTOR 36PIN STRIP TIN JP1
JP2
JP3
JP4
286-1808 CON PCB 36 PIN 90 DEG P1
286-1932 TERM STRIP 6PIN MINI PCB TB1
286-1933 RECPT PCB 8PIN 90 DEG J1
425-0181 IC OPAMP TL084 QUAD BFET U1
U2
425-0230 IC OPAMP LM358 DUAL U3
425-0255 IC CMOS 4093 QUAD TRIG U4
425-0263 INT CKT ULN2804A U5
484-0102 STANDOFF 4-40 X 1/8 ROUN
RC/RP Case Kits Parts List
012-0018 CASE KIT RC-223C
021-1918 MTG BRKT UNIVERSAL
021-6386 CHASSIS UNIVERSAL
021-6452 COVER UNIVERSAL
460-0259 GROMMET 5/16
518-0070 WASH LOCK 4 INT
527-0003 SCREW FH 4-40X1/4 100DE
528-0003 SCREW PH 4-40X1/4
817-0002 BAG POLY 4X8X18
817-0395 CARTON 12X9X3
817-0397 FOAM CONV9X12X2
850-0213 LABEL 221 FRONT
850-0295 LABEL ID RC-223-0/-2
012-0046 CASE KIT RP-223C
021-6584 COVER BTTM P-218/RP-250
021-6585 COVER TOP P-218/RP-250
021-6588 BRACKET P-218/RP-250
021-6642 PANEL REAR RP-223C
527-0003 SCREW FH 4-40X1/4 100DE
528-0069 SCREW PH 10-32 X 7/16
533-0064 SCREW PH 6-20X 1/4 TYPE B
533-0066 SCREW PH 10-12X1/2 TYPE A
817-0003 BAG POLY 10 X 12 FLAT
817-0004 BAG POLY 18 X 24 FLAT
817-0353 CARTONS FOR 211/212
850-0213 LABEL 221 FRONT
850-0296 LABEL ID RP-223-4-6-8
8601 East Cornhusker Highway, Lincol, Nebraska, 68507
Phone: (402) 465-7026 / (800) 752-7560 Fax: (402) 467-3279
E-Mail: vega_signal@earthlink.net, Web: www.vega-signaling.com
Printed in USA
© November1999 Vega
0710538c.sch-1 - Mon Nov 08 15:35:30 1999
0710560b.sch-1 - Mon Nov 08 15:30:21 1999
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