rauland 2524 ChronoCom User manual

KI-1734A
2524 Master Clock
Clock-function Installation and Drawings
RAULAND-BORGCORPORATION l 3450 West Oakton Street, Skokie, Illinois 60076-2951 l [phone]
Table of Contents
General Information 2
Description ........................
Unpacking. ........................
Manuals. ..........................
Communications Functions ........
.........
.........
.........
.........
. ................................. 2 ................................. 2
................................. 2
................................. 2
Specifications
Planning
2
2
i......_..’
Zones .............................
Associated Equipment. ..............
Clock Equipment .................
Output Terminals ...................
Installation
.., 2
., ., .., 3
4
................................. 3
................................. 3
. .
Jumpers ..........................
Rack Mounting. ....................
Wiring ............................
Screw-Terminal Cover. ............
Signaling Devices and Equipment. ..
Correctable Secondary Clocks ........
With Separate Telecenter Systems.
Turning on the 2524. ................
Functional Descriptions 6
Music Events ................................................................................ 6
With Separate Telecenter* Systems. .......................................................... 6
As Controller of Telecenter 1100 Communications Systems ....................................... 6
Secondary Clock-Codes: Table and Wiring Diagrams 7
Secondary-Clock Wiring Figures l-26
Special Application Wiring Figures 27-29
Other Drawings
Connecting Signaling Devices and Equipment . KM0987
Connecting a Serial Device to a 2524. KM0991
Clock and Intercom Controller Jumpers IL0341
0 1992 RAULANDBORGCORPORATION l Pmted m U.S.A Page 1 of 40
Orig. 12/92. Rev 7/96. 173401

2524 Master Clock Installation
General Information
Description
The Rauland 2524 combines the full features of a master
clock with intercom-control ability. As a master clock, it can
correct virtually any secondary clocks and control up to 350
“events” (such as ringing bells or turning lights and equipment
on and off).
2524 Clock and Communications Installation . . , . . . . . KI-1628
2524 Clock and Communicahons Programming . . . , KI-1629
2524 Clock and Communications Operalion . . . . . . KI-1630
These manuals cover both communications and clock functions.
The unit’s L.EDS 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 changed without
having to cycle through many other parts and without having
to re-enter everything else.
Unpacking
Manuals
This manual tells how to install the 2524 for clock functions
only. Instructions on programming and operating the 2524 for
clock functions only are in KI-1733.
The 2524 is shipped with all the hardware needed to mount
it in a rack. Locate the following items before discarding the
packing material:
Rauland
Qv-
Description Part No.
4
#1@32 x ?g" black machine screw.
B0439
4 #lO Flat Washer. WJo305
4
Fiber Washer. WLo315
4 Tinnerman for #lO-32 mounting screw. AB3640
Communications Functions
For information on communications functions, refer to the
following manuals:
Specifications
Programming Capacity:
Up to 350 Events and 100 Holidays.
LED Digit Displays:
Mode, Time, and Schedule.
LED Indicators:
AM and PM
8 Zones/Outputs
7 Days,
Music, Clock, and Communication (COMM).
Keyboard:
18 Buttons: “0 through 9,” Left and Right Cursors,
four functions, Clock-Comm select, and Manual.
outputs:
8 Zone/Output contacts, each with a relay (120VAC, 5-
Amp resistive).
Power Failure Back-up:
Five-year, 3-volt lithium battery.
Power Required:
120-230 volts, 50 or 60 Hz, 20 watts.
Dimensions:
19” (48.3 cm) panel, 3” (8.9 cm) high, 9” (24.1 cm)
deep (including rear conduit box).
Net Weight:
9 Ibs. (4.1 kg).
Planning
The attached wiring diagrams show typical installations for
the 2524 used as a master clock. There is also helpful information
further on, in “Associated Equipment.”
Zones
What may require closer attention in more complex installa-
+;fi..r ;. +t.a ..,,;.., +rr l t.- 7C7A’r 7n+,,/n.,fn.,r t.arm;n~lr Cnr a
Ll”I‘J ,a L&IL W111116 I” L11L &J&-r a -my ““yew LLanI&nnImnP. I “a
thorough explanation of “zones,” consult the 2524 clock-pro-
gramming manual, KI-1733. Briefly, remember that outputs
used for clock corrections or equipment control cannot be used
for other “events,” such as clock tones and music on class
changes. You will also need to coordinate the wiring of secondary
clocks with the “Mode A” and clock-code programming mode.
Be sure to till out the “Zones Chart” (in the programming
m~nt>.al\ whL-h rhnttlrl hp tpnt =itb_ &is _T_2n~Ja!.
~~,‘x’~..P~,, V.~ISL~. “....,I._ YC s-y.
Page 2
7/96

2524 Master Clock Installation
Associated Equipment
This list is representative only. The 2524 is designed to be
highly flexible. Therefore, it is not 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.
Print-out Explanation
<Zones 1234 The event occurred on Zones 1,
12:45PM 9-30-92 2, 3, and 4 at 12:45 p.m. on
9/30/92.
< Time 0O:OO:OO A synchronization command
was sent at midnight. 1
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 (seethe list
and the wiring diagrams at the end of this manual). Finally, you
should be able to program a special correction code for virtually
any other clocks that are not handled by the standard codes.
Gnd: This is a circuit common, which also serves as the
ground.
+5V: This output can be used as an auxiliary power supply
(5 VDC, l00mA). Its most common application is to power a
2417 Correction Adapter Module, which is used with the “DIG"
output (explained next).
Clock Power Supplies: Rauland’s 2415 24-VAC and 2416
120-VAC Power Supplies can handle up to 25 secondary clocks
per unit. To power more than 25 digital clocks, refer to the wiring
diagrams at the end of this manual.
DIG: This output sends serial data pulses that can be used to
control digital secondary clocks. This application requires one,
but can drive up to five, 2417 Correction Adapter Modules.
Buffers: The 2524’s outputs each have a relay that can handle
up to five amperes of current at up to 120VACor 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 can switch up to 10 amperes at 110VAC, and the 2419 DC
Buffer can switch up to five amperes at 60VDC(the higher voltage
is needed by minute-impulse clocks). Wiring two or more buffers
to split the load increases the total load that the output can
handle.
GND: A chassis ground, which also serves as the circuit
common. It should be used when connecting a 2417 Correction
Adapter Module to a 2524.
OUTl-OUT8: These eight pairs of screw terminals are for
the relay contacts, to which you can connect signaling devices,
secondary clocks, equipment, or relay panels. Each relay is
normally open, can handle up to five amperes of current at 30
VDC or 120 VAC, and has an arc-suppression circuit connected
across it.
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. Using this module can free output terminals
for device control.
-GND-: These three screws on the far right are for connect-
ing the unit to 120-VACpower. The middle terminal is for chassis
ground, and the two outer (-) terminals are for the hot and
neutral lines.
Output Terminals
In the following descriptions, the 2524’s rear terminals are
described in order, from left to right, asviewed from the rear of
the chassis.
The following terminals are used when the 2524 controller is
used in the communications mode of operation. Refer to the
2524 ChronoCom Installation manual (KI-1628) for more in-
formation on these terminals.
In-Gnd-Out: These four wire-wrap terminals (there are two
“GND" pins) can be wired to a standard RS-232 cable and
connected thence to a computer or a modem for remote pro-
gramming, or to a serial printer to provide a log of event
executions (seethe sample log below). For the wiring to the cable,
seethe attached KM0991.
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.
RP1: Used to adjust for priority calls in ChronoCom systems.
A Amp: The connection of the main power amplifier.
Music Amp: The connection of a music amplifier.
Answer: Used to answer call-ins with a remote phone. (Note:
not available on TL systems.)
LCD (Z, +, -): The output used to drive a remote VFD display
or an LCD Sidecar Display.
Reset: Used to reset the system after an all-page or an
intercom call. (Note: not available on TL systems).
7/96
Page 3
Logging Messages

2524 Master Clock Installation
Music: Output of a control signal that can activate a 12-volt S-Bus: The connection used for the audio signal in Chrono-
external DPDT relay for switching music audio to the Off-Bus Com and ChronoCom TL systems.
(e.g., switching music on class change on a Telecenter IV or V
system). Beep: The output that activates the signaling of calls by an
external device.
Page In: Allows a remote phone to be used for all-page. (Note:
not available on TL systems.) ICAmp: The connection for the TC4160 Intercom Amplifier
on the ChronoCom Communication Systems.
Page Out: This output is grounded to control all-page from
a remote telephone with an MCZ300 panel on earlier Chrono- Busy: The signal present when the front keypad of the 2524
Com Systems. controller is being used.
Installation
Jumpers
Before enclosing the unit in a rack, make sure that its internal
jumpers are set the way you want them. The Baud-rate jumper
affects only a computer that can be connected for diagnosing
and programming the 2524 (using the optional T2524 Diagnos-
tic Program). If you want to “disable” the programming (to
prevent future tampering), you’ll have to program the 2524 with
the jumper in the “EN” (“enable”) position before changing the
jumper to the “DIS” setting and enclosing the unit (see the
clock-programming manual, KI-1733). The jumper locations are
shown in the attached drawing IL0341.
Rack Mounting
The 2524 is designed for mounting in a standard 19-inch rack.
No special treatment is required if other equipment is mounted
next to it.
Step 1. Locate 31/2inches of rack space where the 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 channel rails.
Wiring
Follow the attached wiring diagrams and refer asnecessary 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). Remove 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 120-VAC wires should be 14-AWG or
heavier-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, install 2418 or 2419 Buffers (see“Associated Equipment”
in the earlier part of this manual).
The 2524 can activate these devices for up to 59 seconds or
“latch” them on for any number of minutes, up to a week. For
more information, refer to “Clock Mode 5” in the 2524 clock-
programming manual, KI-1733.
Correctable Secondary Clocks
The 2524 can simultaneously correct two different types of
secondary clocks through its Zone/Output terminals 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 clock (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 a second correction code isprogrammed, the secondary clocks
for this code must be connected to Out 5 (for the “X’ corrections)
and Out 6 (for the “Y” corrections).
Page 4 7/96

2524 Master Clock Installation
Separate Telecenter@ Systems
i .... The 2524 can be wired to a Telecenter system and cause the
latter to send the tones. In this arrangement, the Telecenter
software defines the zones. Telecenter V systems have eight zones,
so the 2524 can control them individually. In contrast, Telecen-
ter 5500 systems provide only its first four paging zones for time
tones. On a TC5500 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 connected to the
corresponding zone input on the Telecenter system, but the “B”
sides are jumpered together and connected to a common on the
Telecenter system.
x.___,
Telecenter@ IV and V Connections
TCV ClO TCIV MIO 2524 Time Zone
“B”Cnct. “B” Cnct . “Zone/Output”
Pin Pin Term. Pin
21 2 1A 1
23 4 2A 2
25 6 3A 3
27 8 4A 4
29 10 5A 5
31 12 6A 6
.
*33 * 14 7A 7
*35 l 16 8A 8
36 N/A DIG Clock
Sync.
37 la 1B-8B [common]
Notes:
1. The “MIO” is the Main Input/Output Board in the Tele-
center IV.
2. The MIO has wire-wrap terminals, and the 2524 has screw
terminals.
3. Use 22-AWG tinned cable for all connections.
4. Do not connect the TCIV ribbon cable to the 2524.
5. * Usually the 2524’s “Zone/Output” terminals are used for
correcting secondary clocks and so are not available for connec-
tion to a Telecenter system.
TC5500 Connections
Gnd and 1B-4B
** Note: On the TC5500, Zone 9 can 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.
Telecenter System 21
Seethe Telecenter System 21 drawings manual, Kl-1767.
Turning on the 2524
When power is applied to the 2524, it displays “0” in the
“Mode” window, the current time in the “Time”window, and a
flashing “P’” (to indicate that there was a power failure) in the
“Sched” window. The unit comes up in the Clock mode of
operation. Push any key to stop the flashing “P.”
Note: 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 date and the time
(Clock Modes 1 and 2-see KI-1733).
7/96 Page 5