1
Line/area coupler
Product code: EK-BA1-TP
• Dimensions 36 x 90 x 70 mm (WxHxD)
Technical data
Power supply
• 30 Vdc from KNX bus line
• Current consumption (from main bus line) ca.10 mA
Environmental conditions
• Operating temperature: - 5 ... + 45°C
• Storage temperature: - 25 ... + 55°C
• Transport temperature: - 25 ... + 70°C
• Relative humidity: 95% not condensing
Switching, display and connection elements
The device is equipped with 6 LEDs, a function pushbut-
ton, 2 terminals for connecting the KNX bus lines, a pro-
gramming LED and a programming pushbutton.
KNX device with function of line/area coupler. It has to be
used in KNX installations for control of homes and buil-
dings.
Description
The ekinex
®
EK-BA1-TP line/area coupler allows the cou-
pling of a KNX bus main line with a KNX bus secondary
line. The device provides the galvanic isolation between
the two connected lines. Thanks to its flexibility, the cou-
pler can be used as a line coupler to connect a secondary
line with a main line or as an area coupler to connect a
main line with a backbone line. The main task of the devi-
ce is filtering the traffic according to the installation place
in the hierarchy or according to the built-in filter tables
for group oriented communication. The device provides
support for long messages (up to 250 bytes) and a confi-
gurable pushbutton for the activation of special functions
which are helpful during installation, run time operation
and troubleshooting. 6 LEDs accurately display the bus
status on each line. This helps identifying common com-
munication problems due to bus load or retransmissions
on both lines. The device is powered by the KNX bus line
with SELV voltage 30 Vdc and does not require any auxi-
liary power supply.
Functions
• Suppress device configuration on the sub line
• Enable or disable filtering of group messages
• Suppress device oriented messages
• Trace the traffic on the sub line
• Reduced number of retransmissions
• Auxiliary power supply not necessary
Main characteristics
• Housing in plastic material
• Mounting on 35 mm rail (according to EN 60715)
• Protection degree IP20 (according to EN 60529)
• Safety class II
• Weight 100 g
• 2 modular units (1 unit = 18 mm)
REAEKBA1TP
Switching elements
• Pushbutton (10) for switching between the normal and
programming operating mode
• Function pushbutton (4)
Long press (3 sec)
- Switch to manual overwrite, configuration is done via
ETS
- Status LED main bus line red:
On: switch on manual overwrite
Off: switch to configured routing
Very long press (15 sec)
LED: Bus Status Main (1), Bus Status Sub (7), Group
Address (3), Physical Address (9) on red. Release but-
ton and press again for some seconds: resets all the
parameter to factory default (incl. physical address).
Display elements
• Status LED main bus line (1)
- off: error
- on (green): main line ok
- on (red): manual override active
• Status LED secondary bus line (7)
- off: secondary line error or not connected
- on (green): secondary line ok
Datasheet STEKBA1TP_EN
1) Status LED main KNX bus line (green/red)
2) Traffic LED main KNX bus line (green/red)
3) Status LED filter table group addresses (green/red)
4) Function pushbutton
5) Programming LED (red)
6) Terminal block for main KNX bus line
7) Status LED secondary KNX bus line (green/red)
8) Traffic LED secondary KNX bus line (green/red)
9) Status LED filter table physical addresses (green/yellow)
10) Programming pushbutton
11) Terminal block for secondary KNX bus line
DCEKBA1TP
1
bus
status
traffic
GA
function
PA
R
EK-BA1-TP
MAIN
SUB
Line/area coupler
2
3
4
5
6
7
8
9
10
11
TP1
S
