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4.3.10. Communication ports
4.3.10.1. RS232 and USb interfaces
•
Communication line (CoM) is a very low voltage circuit of
safety. To preserve the quality, it has to be installed separate
from other lines that have dangerous voltages (energy distribution
line).
• RS232 and USb interfaces are used by the monitoring software
and firmware updating.
• it is not possible to use both ports at the same time.
• Signal pin-out of the Db9 connector are shown in table 5.
RS232 port consists in a serial data transmission, so an important
quantity of information can be sent through a communication
cable of 3 wires.
• Physical structure of RS-232.
Pin 2. RXD. Serial data reception.
Pin 3. TXD. Serial data transmission.
Pin 5. GnD. Ground of the signal.
Pin #
Description
input / output
2
TXD
output
3
RXD
input
5
GnD
input
Tab. 3.
Pin-out of the RS232 in the Db9 connector.
• USb communication port is compatible with the USb 1.1 protocol
for communication software.
4.3.10.2. Smart slot
• UPSs have a unique slot, hidden rear the cover stated in the views
of the equipment as "Smart slot", and allows inserting any of the
following options cards:
SnMP for control via web.
Remote UPS management through internet or intranet.
Relays interface (for more details see the next section).
• For more information, contact our KESS Support-Team or our
nearest distributor.
4.3.10.3. Relays interface (option)
•
Communication line (CoM) is a very low voltage circuit of
safety. To preserve the quality, it has to be installed separate
from other lines that have dangerous voltages (energy distribution
line).
• UPS has a dry contact card for the relays interface communication
protocol, it provides digital signals in a free potential way, with a
maximum applicable voltage and current of 240 V ac or 30 V dc
and 1A.
• This communication port makes possible the dialogue between
the equipment and other machines or devices, through the 5 dry
contacts supplied in the terminal strip included in the same card
and to each one of them an alarm of the 8 available can be as-
signed (see table 6).
Also there are other three additional terminals with only one
common, for an installation of an external on/off switch to the
UPS and a third one with free setting among EPo, Shutdown or "
"on-off" remote control.
From factory all contacts are normally opened, being able to set
them separately one by one, by means of the Hyper Terminal
software or equivalent.
• The most common use of this type of ports is to provide the
needed information for the closing file software.
• This card has a RS232 port through a RJ connector. So, in case
of requiring a Db9 connector, use the adaptor RJ / Db9 supplied
with the relays interface card.
• For more information, contact our KESS Support-Team or our
nearest distributor.
Sw2 "on"
Sw3 "off"
Sw1 (*)
Relays interface card
internal
relays
14
7
1 (GnD)
13
12 11
10
9
6 5 4 3 2
8
Fig. 18. Relays interface dry contact pin-out
installation
• Remove the protection cover from the slot of the equipment.
• Take the relays interface card and insert it into the smart slot.
Make sure that it is well connected, so the resistance that the own
connector inside the slot makes has to be overcome.
• Make the needed connections in the alarm terminal strip.
• Put the new protection cover that it is supplied with the relays
interface card and fix it through the same screws that fixed the
original cover.
Description
nr pin
input/output
Mains fault
Programmable
output
low battery
Programmable
output
General alarm
Programmable
output
bypass status
Programmable
output
Summary alarm
Programmable
output
battery test
Programmable
output
Shutdown in process
Programmable
output
overload alarm
Programmable
output
UPS signal "on"
1 (GnD) - 14
input
UPS signal "off"
1 (GnD) - 7
input
Programmable signal as:
- EPo
- Shutdown on battery mode
- Shutdown on any mode
- Remote control "on-off"
1 (GnD) - 8
input
Tab. 4.
Relays interface alarms
