Timekeeper™
Users Manual
01/11/20
Power Distribution
All of the connectors described above have 12VDC power input/output so that if one Timerkeeper
TM
is powered, all are
powered. Keep in mind that larger displays require more power. The power supplies within a display unit has specific
limitations. DO NOT overload the power supply. If you are powering a larger number of displays, Alzatex provides a
KT6X422A
or
KT8X422A
distribution module that permits multiple displays to be powered from a single source.
With the use of these distribution modules, an unlimited number of displays may be connected in a single system.
Some models have only RJ11 connectors, while other models have only RJ45 connectors. Alzatex provides a
PS422A
module that can power up to 4 devices and converts from RJ11 to RJ45 interfaces. See the data sheet for details.
Alzatex also manufactures serial interface modules to convert data from RS422 or RJ11 to RS232C. These modules
also have a built in power supply for powering timers and/or displays.
•
The
PS1DB9B
interface adapter converts RJ11 data to RS232C.
•
The
PS422DB9A
interface adapter converts RJ45 (RS422) data to RS232C.
See the connection diagram provided in the installation instructions for a particular unit.
●
The power supply in the DSP017 and DSP221 series can drive up to a 0.75A load.
●
The power supply in the larger sized displays/timers can drive up to a 2A load.
●
Larger loads require a distribution module. Each distribution module can drive up to a 5A load when the
12VAC50VA wall transformer is used.
●
Larger loads require a distribution module. Each distribution module can drive up to a 9A load when the
SYM04 power supply is used.
Beeper and/or Relay Output
See the specific relay output applications on how these optional configurations are used:
•
Run Relay. Some models have an NPN ground closure output. Specific models may be equipped with a relay
with 2.5A or 5A dry contacts. The RUN relay option must be specified when ordering.
•
Beep Relay. Some models have an NPN ground closure output. Specific models may be equipped with a relay
with 2.5A or 5A dry contacts. The BEEP relay option must be specified when ordering.
•
Beeper. Instead of or in addition to the relay, One or more beepers or loud sounders may be installed. The
specific Beeper/Sounder option must be specified when ordering.
Wireless Communication
A wireless transceiver may be connected to most models. Any number of timers and displays may be connected
together using wireless communication.
•
The 2.4GHz wireless module is accepted in most countries.
•
The 900MHz wireless module provides a longer range. (USA only)
A wireless receiver for a hand held keyfob may be connected to most models.
•
Timer. The 15 button key chain transmitter provides timer start, stop reset and recall stored settings.
•
Counter. The 15 button key chain transmitter provides counter increment, decrement, reset and direct number
entry.
DC power status checking and the 50/60Hz SYNC signal
The unit will accept either 50Hz or 60Hz line frequencies. It will automatically detect which line frequency is being
received. This feature only applies to models that the 50/60 Hz SYNC feature.
VERSION=5C
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