rauland 2524 ChronoCom User manual

KI-1628
2524 ChronoCom TM Master Clock and
Intercom Controller
Installation
RAULAND-BORG CORPORATION l 3450 West Oakton Street, Skokie. Illinois 60076-2951 l [phone]
General Information
Description
The Rauland 2524 combines the full features of a changed without having to cycle through many other
master clock with intercom control functions. As a master
parts and without having to re-enter every-thing else.
clock. it can correct virtually any secondary clocks and
control up to 350 “events” (such as ringing bells or
turn-
Unpacking
ing lights and equipment on and off). As an intercom The 2524 is shipped with all the hardware needed to
control center, it enables a user to "dial” room speakers,
mount it in a rack. Locate the following items before
displays the number of a room calling in, and provides
software zones for bell tones and paging. For security
applications, it can automatically check the wiring to
room
stations every hour (or manually at any time) and
enable an intercom user to monitor selected rooms in
order to listen for disturbances.
The unit’s LEDs and keypad make it easy to enter and
check all programming. Of special note is the ease with
which any part of the programming can be accessed and
discarding the packing material:
Qty.
Description
4
#1O-32 x 3/8” black machine screw.
4
#10 Flat Washer.
4 Fiber Washer.
4
Tinnerman for #10-32 mounting screw.
1
Intercom-functions label.
Rauland
Part No.
B0439
WJ0305
WL0315
AB3640
N1710
Specifications
Programming Capacity: tip to 350 Events and 100 Outputs:
8 Zone/Output contacts, each
Holidays.
with a relay (120-VAC, 5-Amp
Up to 500 Room Stations. resistive).
LED Digit Displays:
Mode. lime or Station Number. Power
Failure Back-up:
Five-year, 3-volt lithium battery.
and Schedule.
Power Required:
120-230 volts. 50 or 60 Hz,
LED Indicators: AM and PM
20 watts.
8 Zones OutputsDimensions:
19’ (48.3 cm) panel, 3’ (8.9 cm)
7 Days.
high, 9” (24.1 cm) deep
Music, Clock. and Communica-
(including rear conduit box).
tion (COMM).
Net Weight: 9 lbs. (4.1 kg).
Keyboard: 18 Buttons: ‘0 through 9,” Left
Panel Fioish:
Textured charcoal gray. with
and Right Cursors, four func- white numerals and function
tions, Clock-Comm select, and designations.
Manual.
Planning
The attached wiring diagrams show typical installations
terminals. For a thorough explanation of ”zones,” consult
for the 2524: used as a master clock only, and used in
the 2524 programming manual, KI-1629. Briefly remem-
typical clock-and-intercom applications. You will also find
ber that outputs used for clock corrections or equipment
helpful information in the next subsection, "Accessories.”
control cannot be used for other “event,” such as clock
Zones
tones and music on class changes. You will also need to
coordinate the wiring of secondary clocks with the “Mode
What may require closer attention in more complex
A” and clock-code programming mode. Be sure to fill out
installations is the wiring to the 2524’s “Zone/Output”
____________..._~__
© 1990 RAULAND-BORG CORPORATlON . PrInted in U SA Page
1of41
Orig 4/90

2524 ChronoCom Master Clock-Installation
the “Zones Chart” (in the programming manual). which
should be kept with this manual.
Associated Equipment
This list is representative only. The 2524 is designated to
be highly flexible. Therefore, it is nor practicable to list
every possible application in this manual. What is listed.
the attached wiring diagrams. and the descriptions of the
outputs should cover most applications and
give you
some ideas for working out special installations.
Clock Equipment
Secondary Clocks:
The 2524 can correct all of
Rauland’s secondary analog and digital clocks. It can also
correct all of the widely distributed clocks from other
manufacturers (see the list and the wiring diagnms at the
end of this manual). Finally, you should be able to pro-
gram a special correction code for virtually any other
clocks that are not handled by the standard
codes.
Clock Power Supplies: Rauland’s 2415 24-VAC and
2416
120-VAC Power Supplies can handle up to 25 sec-
ondary clocks per unit.
Buffers: The 2524’s outputs each have a relay that an
handle up to five amperes of current at up to
120 VAC or
30 VDC. Should the equipment you connect to a given
output require more power, you can accommodate it by
using
buffers. The 2418 AC Buffer an switch up to 10
amperes at 110 VAC, and the 2419 DC Buffer an switch
up to five amperes at 60 VDC (the higher voltage is nccdcd
by minute-impulse clocks). Wiring two or more buffers to
split the load increasesthe total load that the output can
handle
2417 Correction Module: This is used to enable the
2524’s “DIG” output to control a power supply with up
to 25 digital secondary clocks.
Intercom Equipment
Director Control Panels: The combination of the
2524 and a Director intercom
system provides a sophisti-
cated communications control ccnrcr. The inrcrcom pan-
els enable the
user to talk and listen to rooms. and to
distribute program material (from optional program
sources and over optional power amplifiers). The 2524
shows all-ins on its display,
enables the user to dial
rooms on its keypad, and provide software zones for
paging (and time tones). All of the station-related func-
tions also require optional speakcr relay modules and
room speakers.
Speaker Relay Modules: These panels carry out the
zoning and calling commands from the 2524 by conncct-
ing the proper rooms. The TC4 130, like
the TC4 120
(SCC25), has a chassis for rack-mounting. The
TC4131,
like
the TC41 l0 (SC25), is designed to be mounted on the
back of Rauland switch panels, such as the SW Series.
Telephone: A CRT3 Staff Telephone can bc used for
communicating with room stations and paging
The 2524
will show call-ins on its display and signal them with
“beeps.” Again, this requires optional relay modules for
tching the speakers on. Also required is a TC4160
CM2 Voice-Controlled Module) which is an amplifier
unir that automatically switches from "listen" to “talk”
when the telephone user begins speaking. For a more
complete display of all-ins (and for a remote Iocation),
install a TC4200 Vacuum Fluorcsccnt Display. See the
attached wiring diagram KM0983.
Music: The 2524 an distribute a program or music
source connected
to its "Program” input for continuous
listening. It can also distribute a program source con-
nected
to its “Music” input as part of a class-change event.
Besides the relay modules and room speakers, this re-
quires a program source, such as the
Rauland MCX300
Tuner and Tape Cassette Player, and a power amplifer.
Output Terminals
In the following descriptions, the 2524’s rear terminals
are described in order, from left to right as viewed from
the rear of the chassis.
In-Gnd-Out: These four wire-wrap terminals (there
are two “GND” pins) an be wired to a standard RS-232
cable and connected thence to acomputer or a modem
for remote programming, or to a serial printer to provide
a log of intercom activities. event execution, and
faulty
lines (see the sample log below). For the wiring to the
cable, see the attached KM0991.
RPl: This potentiometer must beadjusted for the 2524
to respond to all-ins (see ‘Calibrating RP1” in this man-
ual).
SC25: This
26-pin connector must be connected to all
optional speaker relay panels in the system. It conveys the
data for switching the speaker relays.
Logging Messages
Print-out
Explana tion
<.CALL 126
ll:37AM 4-5-9O
< .ANSW 126
11:38AM 4-5-90
<.EMER 129
11:45AM 4-5-90
<.ANSW 129
lI:45AM 4-5-90
<.ZONES 1234
12:45PM 4-5-90
< .FAULT 101
1:00PM
4-5-90
<.TIME 00:00:00
Station 126 placed normal call at
1 1:37 AM 4/5/90
Call from Station 126 answered.
Station 129 placed emergency call.
Call from Station 129 answered.
Event occured on Zones I, 2.3. and
4 at 12:45 P.M. on 4/5/90.
Fault detected
at station 101.
Synchronization command sent at
midnight.
Answer:
Momentarily connecting this input to acircuit
ground instructs
the 2524 to connect a remote telephone
to a station that is calling in. If this and a ground terminal

2524 ChronoCom Master Clock-Installation
Connect the VCM2’s "S" terminals to this relay’s normally
closed
contacts and the music amplifier to its normally
open contacts. With this arrangement, lifting the remote
telephone off-hook causes the 2524 to internally connect
the C Bus with the S Bus. When an event calls for music,
the "Music” terminal pulls in the external relay, connect-
ing the music amplifier’s output to these ‘Music Amp”
terminals;
the 2524 internally connects these terminals to
the S Bus.
Since only one source of programming an be distrib-
uted
at a time, the ‘A” Channel amplifer may bc wired in
parallel to this input, as shown in the attached system
wiring diagrams. However, if the customer wants to use a
different program source for program-distribution and
the music associaa ted with clock tones, connect a separate
music amplifer and source to these terminals.
arc wired across the phone’s hook switch (use the “Aux”
terminals on the CRT3). lifting the handset will immedi-
ately
connect it to the caller. It is also necessary to keep
the “Reset” terminal (described next) connected to a
circuit common throughout
the communication. See the
attached KM0983.
Reset: This must remain connected tO a circuit com-
mon while the remote phone is paging or in communica-
tion with a room station.
Connect this input and a ground
terminal across the hook switch of a remote phone (the
"Aux" terminals on a CRT3 Staff Telephone). Note that
this output is active when it is high: it disconnects the
paging and intercom amplifiers and releases the speaker
relays unless it is grounded. See the attached KMO983.
Page In: Momentarily connecting this input to a circuit
common instructs the 2524 to connect a remote tele-
phone to all room stations for an All-Page announcement.
This takes precedence over the “Answer” terminal. Thus,
if “Page” and “Answer” are grounded simultaneously, the
2524 will arty out the page and ignore the answering
function. If the remote telephone is in communication
with a room station, pressing the Page button would
disconnect the room and engage the paging function. It
is also necessary to keep the "Reset" terminal (described
immediately above) connected to a circuit common
throughout a page. See the attached KMO983.
In: Connecting another master clock here enables it to
control the time in this unit. When the 2524 receives a
valid synchronization signal from another Rauland master
clock, it changes its time to 12:01 a.m.
Gnd: This is a circuit common, which also serves as the
ground.
S-Bus: These screw terminals are for the balanced
25-volt speaker audio lines. They must be connected to
the S-Bus terminals of all the optional relay panels in the
system. Refer to the attached wiring diagrams for more
details.
IC Amp: Connect the intercom-amplifier output of an
optional Director master control panel to these screw
terminals. The 2524 can then internally connect this
audio to the S Bus, which runs from it to the optional relay
panels. Refer to the attached KM0983 and KM0984 for
more details.
A Amp: These screw terminals are used to
receive the
output of the “A” Channel amplifier. The 2524 internally
connects this to the S Bus for program-distribution and
paging functions. Rcfcr to the attached
system wiring
diagrams for more details.
Music Amp: Connect the output of the music amplifier
to these screw terminals to provide music after clock tones
(controlled by the event programming). If there is a re-
mote phone install an external relay as shown in KM0983.
LCD: These three terminals are connected to the cor-
responding terminals on an optional TC4200 Vacuum
Fluorescent Display.
Music. This output is used to control an optional
external relay when there is a remote phone (see the
attached KM0983). When a clock event calls for music
after a tone, this terminal is internally grounded, which
activates the external relay (see the ‘Music Amp” termi-
nals, above).
Beep: The 2524’s built-in
Sonalert® beeper will signal
all-ins. If a signal is desired in another loation (e.g., by
a remote phone that does not have an associated TC4200
display), the 2524 an also drive an external 6-VDC
Sonalert type of sounding device. Connect the device’s
positive lad to the “Beep” terminal and its negative lead
to a ground terminal.
Busy: These outputs an used to connect an external
indicator (LED, lamp. etc.), which could be used by the
remote phone to show when the 2524 is being used for
communications or programming. The device will be ac-
tivated whenever the front-panel keypad is used. and will
remain on until that function has ended. The “+ " terminal
an provide up to 45 milliamperes of current.
Page Out: This output is wired to a Director master
control panel when a remote phone is installed (see the
attached KM0983). When the remote phone performs an
All-Page, the 2524 connects this output to the circuit
common. This, in turn, causes the master control panel
to feed the remote phone’s audio into the “A” Channel
amplifier.
+5V This output an be used as an auxiliary power
supply (5 Vdc ,1OOmA). Its most common appliation is
to power a 2417 Correction Adapter Module, which is
used with the ‘DIG” output (explained next).
DIG: This output sends serial data pulses that an be
used to control digital secondary clocks. This application
requires a 2417 Correction Adapter Module.

2524 ChronoCom Master Clock-Installation
GND: A chassis ground. which also serves as the circuit
of current at 30 VDC or 120 VAC, and has an arc-suppres-
common. To be used when connecting 24 17 Correction
sion Circuit connected across it.
Adapter Module to 2524.
-GND-::
These three screws on the far right are for
OUTl-OUT8: These eight pairs of screw terminals are
connecting the unit to 120-VAC power. The middle termi-
for the relay contacts. to which you can connect signaling nal is for chassis ground, and the two outer (-) terminals
devices. secondary clocks, cquipmcnt, or relay panels. arc for the hot and neutral lines.
Each relay is normally open, can handle up to five amperes
Installation
Rack Mounting
The 2524 is designed for mounting in a standard 19.
inch rack. No special treatment is required if other equip
ment is mounted next to it.
Step 1. Locate
3½ inches of nckspacewhcre 2524 will
be mounted. Slide the
four supplied # 10 Tinnerman clips
over
the mounting holes in the channel rails. (If the
channel rails holes are tapped, do not use these clips.)
Step 2. Prepare the mounting screws by placing a black
flat washer and then a fiber washer over each one (all
supplied).
Step 3. Position the 2524 in the rack, align its front-
panel mounting holes with the Tinnerman clips, and use
the four prepared machine screws to secure it to the
channe1 rails.
Wiring
Follow the attached wiring diagrams and refer as nec-
essary to the earlier descriptions of the terminals and
accessories. What follows here are a few helpful details.
Screw-Terminal Cover
To access the screw terminals, remove the shield from
the bottom of the electrical box that is attached to the rear
of the chassis (on the right, as viewed from the rear).
Rcmovc the two sheet metal screws, then disengage the
cover’s tabs from the slots in the 2524’s chassis by sliding
the
cover to the left and then pulling it straight back.
Reverse this process to re-secure the cover.
For a permanent installation and to protect against
shock hazard, run the
120-VAC wires through conduit
attached to one of the cover’s knockouts. If you are
running both high- and low-voltage wires, use separate
conduits and knockouts. For any low-voltage wires run in
conduit, use the knockout nearest the "Zone/Output”
terminals. The 12O-VAC wires should be I4-AWG or heav-
ier-gauge, and they should have an added six-inch loop
inside the cover.
Signaling Devices and Equipment
The attached KM0987 shows how signaling devices and
equipment can be connected for each zone. If two or more
signaling devices are required for a given zone, they can
be connected in parallel and share the connections to the
relay terminals for that zone. For loads that exceed the
built-in relays’ rating, you can install 24 18 or 24 19 Buffers
the “Accessories” descriptions in the earlier part of
s manual).
The 2524 can activate these devices for up to 59 sec-
onds or “latch” them on for any number of minutes, up
to a week. For more information, refer to “Clock Mode 5”
programming in the 2524 programming manual, KI-1629.
Correctable
Secondary Clocks
The 2524 an simultaneously correct two different
types secondary clocks through its "Zone/output” termi-
nals and Clock Mode A programming. The tables and
“Figure” drawings at the back of this manual show how to
hook up virtually every widely-distributed secondary
clock. It is also possible to make a custom code for a dock
(in Clock Mode B programming).
Use the secondary-clock table to find the associated
drawing for each type of clock. The drawing will tell you
the standard code and show the wiring needed.
If only one correction code is used, then Out 7 and Out
8 must be used to connect the secondary clocks. Out 7
will send out the "X” corrections, and Out 8 will send out
the “Y” corrections.
If two different correction codes are programmed
then tie secondary clocks for first code must be con-
nected to Out 5 (for the “X” corrections) and Out 6 or the
"Y" corrections). The clocks for the second code must be
connected to Out 7 (for the "X" corrections) and Out 8
(for the "Y" corrections).
Telecenter® Systems
Instead of sending tones directly to room speakers, the
2524 an be wired to a Telecenter system and cause the
latter to send the tones. In this arrangement. the Telecen-
ter software defines the zones. Telecenter IV systems have
eight zones, so the 2524 an control them individually. In
contrast. Telecenter 5000 and 5500 systems provide only
four zones for time tones. In the TC5OOO, each of these
zones consists of two or three paging zones: for example,
the first time-tone zone consists of paging zones 1 and 2,
and the fourth time-tone zone consists of paging zones
7-9. The TC55OO simply uses its first four paging zones for
time tones. On a TC5000 or TC55OO system, the 2524 also
synchronizes the system clock.
Use the appropriate table below for the wiring. Note
that the “A” side of each “Zone/Output” terminal used is
conncctcd to the corresponding zone input on the
Tclcccntcr system. but the "B" sides are jumpered to-
gether and conncctcd to a common on the Telecenter
system.

2524 ChronoCom Master Clock-Installation
Telecenter IV Wiring Connections
TCIV MI0 "B"
I
2524 ‘Zone/Output”
I
Time
Connector Pin Terminal Pin Zone
I
2
I 1
4 2A 2
6 3A 3
8 4A 4
10 5A 5
12 6A 6
*14 7A 7
l 16 8A 8
18
lB-8B* [Common]
Notes:
1. The “MIO” is the Main Input/Output Board in the
TeleCenter IV.
2. The MI0 has wire-wrap terminals, and the 2524 has
screw terminals.
ing
“P” (to indicate that there was a power failure). The
unit comes up in CLOCK mode ofoperation. Push any key
to stop
the flashing “P.”
Nofe:
When the clock is turned on for the first time or
at any time when
the battery was “disabled,” the "Time”
windows may show random numbers. In this case set the
TC5000 and TC5500 Wiring Connections
3 3A 3 5and6
4 4A 4 7, 8, and 9
1
1
11
J
l Note: On the TC5500, Zone 9 an be programmed
(#20*) to (a) ring with only Zone 1, 2, 3. or 4, (b) ring
when any of those Zones ring, or (c) not ring at all.
3. Use 22-AWG tinned cable for all connections.
4. Do not connect the TCIV ribbon cable to the 2524. date and
the time (Clock Modes 1 and 2-see KI-1629).
5. l Usually the 2524’s
“Zone/Output” terminals are Adjusting the Call-in Sensitivity
used for correcting secondary clocks and
so are not avail-
able for connection to a Tcleccnter system. You must adjust Pot
RP1 on the 2524 for call-in sensi-
tivity before running the unit in the
“Comm” mode or
Turning on the 2524
activating the call-scanning function in Mode E. Use
Comm Mode 5 programming to make this adjustment (see
When the power is applied to the 2524, it displays:
KI1629, the 2524 programming manual).
‘Mode” 0, “Time” (the current time), and “Sched” a
flash-
Functional Descriptions
This section explains the way the 2 524 operates some
special features. The regular operations are explained in
the
section on the individual outputs, above.
Supervision
When this function is enabled,
the unit scans the
speaker stations every hour for
shorted, open, or
grounded lines. This scanning will start on
the hour and
proceed when no other activities arc taking
place (e.g.,
paging and music events) until
either all lines are scanned
or the
first faulty line is found. If it finds a fault, it will flash
an
"F" in the "Sched” window, and display the station
number in the “Time” windows. Push
- to continue
scanning. You can also have the 2524 do a cycle of scan-
ning at any time by
pressing Manual while the unit is in
the “Comm” Mode.
Even as it is displaying
faults one-by-one in its “Sched”
window, the 2524 will
immediately send 1 complete list
of all faults to its serial port. Thus, you can obtain an
immediate and pcrmancnt record of the faults by connect-
ing
a serial printer or a computer to this port (the “In-Gnd-
out” terminals-see “Output Terminals,” above and the
attached KM0991).
Monitoring
When this function is
activated by the operator, the
2524 connects each selected room station, one by one, to
the Director control panel’s speaker. Each station will
remain connected for one to 15 seconds, depending upon
the programming. This enables the operator to listen
briefly to each room for a disturbance that might call for
action. See the 2521 programming manual, ICI-1629, for
details on selecting the rooms, setting the connection
time, and enabling the function, and the 2524 operation
manual,
KI-1630, for details on using the function.
Music Events
A clock
event can specify that a time tone be followed
by one to fifteen minutes of music. The 2524 handles this
in two different ways, depending upon whether or not it
is using
speaker relay panels.
With Speaker Relay Panels
In this case, the Clock Mode E programming will specify
a number greater than “0” for SC25s.

2524 ChronoCom Master Clock-Installation
2. Activating the external tone generator and connect-
ing it to the input of the program amplifier.
3.
Connecting the S Bus to the output of the program
amplifier.
4. Pulling in the speaker panels’ relays for the appro-
priate zones.
Next. the 2524 ends the tones and sends out the music
(or other
program source) by:
5. Deactivating the “Zone/Output” relays.
6. Switching the S Bus to the output of the music
source.
7. Deactivating the external tone
generator, discon-
necting it from
the program amplifier. and connecting the
music source in its place.
Finally. the 2524 ends the event by:
8. De-energizing the speaker panels’ relays.
9. Connecting the S Bus to aDirector control panel or
the output of a program amplifier.
Without Speaker Relay Panels
In this case, Clock
Mode E programming specifies "0”
for the
number of SC25s, and its outputs are connected
to a Telecenter system.
First. the 2524 will activate the Telecenter system’s time
tones by:
1.
Activating the appropriate “Zone/Output” relays.
Next, the 2524 ends the tones and sends out the music
(or other program source) by:
2. Deactivating its “Zone/Output” relays.
3. Switching the Off Bus to the music source’s output.
Finally, the 2524 ends the event by:
4. Disconnecting the Off Bus from the output of the
music source.

Clock Codes
2524 ChronoCom Master Clock-Installation
Clock Codes
SECONDARY CLOCK
MANUFACTURER
AND MODEL
Rauland Analog:
2460 Series
NATIONAL-
010-NNE-SRAX,
010-NNE-SRAXLV,
023-NNE-SRAX,
023-NNE-SRAXLV,
030-NNE-SRhX,
030-NNE-SRAXLV,
060-12E-SRAX,
and
060-l2E-SRAXLV
(NN= any two-digit
numbcr)
Dukane: 24030, 24023,
24050, 24060
and 24010 types
SIMPLEX: 2310-91XX
56 and 76 Scria
IBM:
56, 61, 66, 76, 81
and 86 Series
STROMBERG:
E3109 and WS310
NATIONAL.
010-NNE-SR,
010-NNE-SRLV,
023-NNE-SR.
023-NNE-SRLV,
030-NNE-SR
030-NNE-SRLV,
060-12E-SR,
and
060-12E-SRLV
(NN = any two-digit
number)
DUKANE: 24BF209,
24BF2
12
7078 and 707-9 types
SlMPLEX
77M45 Series
IBM:
77M-45 Series
CLOCK
TYPE
Synchronous
Wired
Electronic-
Coded
Synchronous
Wired
Synchronous
Wired
Synchronous-
Wired
(old type)
Synchronous
Wired
(dual-motor)
REFERENCE
FIGURE
lor 2
3
SECONDARY CLOCK
MANUFACTURER
AND
MODEL
HONEYWELL:
ST 402, 403, 404, 4 10, 411,
412,
413, 802, 803, 804,
810, 8ll, 812. and 813
FARADAY:
1310, 1311. 1320. and 1321
CINCINNATI:
D8
STANDARD/FARADAY:
New Types
Models
2310, 233l
STANDARDELECTRIC
TIME:
GRC and FMT Series
COUCH: C452014 through
C3452019. and
C452 133 through
C452145
Miscellaneous
AppIication
SIMPLEX:
77M-59 Series
IBM
77M-59 Series
SIMPLEX: 23 10-92XX
57 and 77 Series
IBM:
57, 62, 67, 77, 82, and 87
Series
CINCINNATI:
D10 and
D12
LATHEM:
SS 12 Types
ED WARDS: 0 10
DUKANE: 24SS Series
STANDARD ELECTRIC
TIME: AR2
CLOCK
TYPE
Synchronous-
Wired
Synchronous-
Wired
(dual-motor)
Minute
Impulse
Synchronous-
Wired
(dual-motor)
Synchronous
Wired
Minute
Impulse
REFERENCE
FIGURE
8
9
10
11
12
13

2524 ChronoCom Master Clock-installation
Clock Codes con t 'd
SECONDARY CLOCK CLOCK
MANUFACTURER TYPE
AND MODEL
IBM: 55, 60, 65, 75, 80,
and 85 Series Minute
SIMPLEX:X
23 1 0-90XX
Impulse
55 and 75 Series
1
I
DUKANE: 241SC Series
I I
CINCINNATI:
I
Minute
15
D3 (two-wire polarized)
Impulse
Clock Codes cont’d
SECONDARY CLOCK
MANUFACTURER
AND MODEL
AMANO:
(Made by
STANDARD TIME)
CLOCK
TYPE
Minute
lmpulse
REFERENCE
FIGURE
21
RAULAND:
Digital Secondary using
24 VAC Digital
22
RAW:
Digital
Secondary using
Digital
23
120 VAC
RAULAND:
Digital Secondary using
Serial Output (DIG) and
24 VAC
Digital 24
RAULAND:
Digital Secondary wing
Serial Output (DIG)
and 120 VAC
Digital
25
FRANKLIN Mark 5M Bi-Polar
Im-
pulse
26