iNStaLLiNG the Ur1
The UR1 may be installed in a single standard
electrical box, or in a double-gang box along with a
second UR1 or UR2 remote control.
frONt paNeL featUreS
rOtary eNCODer
Use this to adjust the level of the function assigned
to the remote control. A ring of 15 LEDs surrounding
the encoder indicates the relative level.
fUNCtiON BUttON
The function button may be programmed for a
number of actions, such as "Mute an Input" or
"Recall a Priority." When the function is activated,
the LED in the button illuminates. Programming is
done in the Remotes window of DX Navigator.
rear paNeL featUreS
iD
This 8-position DIP switch provides 128 (0-127)
unique device IDs read via binary code. Switch 1
is the least significant bit (LSB), and switch 7 is the
most significant bit (MSB). Switch 8 is ignored, but
should be set off. ID '12', for example, would be set
as follows: 0001100. All DIP switches are off except
for three and four.
Each remote control must have the selection switch
set to a unique ID. When the master unit is first
turned on, it polls the REMOTE BUS and identifies the
remote controls connected to it by each unique ID.
CONNeCtOr (rJ-25)
Connect the cable from the master unit
(e.g. DX1208) directly to this connector. It should
easily snap in place. The other RJ-25 connector goes
to the next remote. The order of devices or device
IDs is not important. The chain must be a simple
chain (no branches), and must not link back to itself
at any point (no loops).
pOwer
The easiest way to power a UR1 remote is
from the master unit over the remote bus cable.
Both jumpers should be installed on J6 and J7
(default).
Alternative power (7-24VDC) may be used
if the power required by the number of remotes
needed exceeds the capability of the master
unit. Connect positive to the 'Alt PWR' screw
terminal and common/0V/ground to the 'GND'
screw terminal.
WARNING: power from the master unit must
be disconnected at an appropriate point by
removing one or more jumpers on J6 and/or
J7. J6 and J7 connect and disconnect VBUS
to the remote on the J1 and J2 modular jacks
respectively.
The alternative power goes directly to
the remote and will also connect to either or
both modular jacks if the respective jumper
is installed. Therefore, it is possible to power
several remotes over the interconnection cable
from the alternative power of one remote.
The maximum current allowed into any
single alternative power connection is 0.4A
(e.g. 9.6W @ 24V, 3.6W @ 9V). This is limited
by a self-resetting fuse at the alternate power
connection terminals in the remote.
Power required: 0.1W 7-24VDC
For example: 4.1mA @ 24VDC, 11.1mA @ 9VDC
Voltage at the remotes must be >7VDC,
even after taking account of any resistive losses
in the cables.
CONNeCtiON DiStaNCeS
As connection distances increase, or
cable DC resistance increases, or VBUS
current increases, the VBUS voltage losses
will increase. In many situations, this will be
negligible. Remotes are constant power devices
within their rated voltage, so the current
will increase as the voltage at the remote
decreases. This, in turn, increases cable losses.
As a general guide, if using 24AWG wire,
connected as specified (total resistive loss = 3
Ω
per 100 feet of cable - round-trip):
When using 24VDC supply capable of 0.4A
(e.g. DX1208), it can typically support:
• Up to 8W load up to 250 feet*
• Up to 2W load up to 2000 feet*
• Up to 1W load up to 4000 feet*
*The load does not include cable losses.
When using 12VDC supply capable of 0.4A, it
can typically support:
• Up to 4W load up to 150 feet*
• Up to 1W load up to 1000 feet*
*The load does not include cable losses.
J6
J7
39.4 mm / 1.55 in*
49.4 mm / 1.94 in*
*the connector and cable will add
~25 mm / 1 in to the overall depth
Alternative
Power:
+V
Gnd
Remote bus:
