As part of your Synergis™ Cloud Link installation, you might need to include a
Mercury LP1501 intelligent controller.
Important: LP controllers include a Micro USB port. This connection is not
to be used if UL/ULC listed access control system compliance is required and is to
be maintained.
The following diagram demonstrates how to connect the controller.
A
Reader connections
TB2: Reader 1
Note: The wire colors in the illustration refer to
"pigtail" HID readers; the information in parentheses refers to
"terminal block" HID readers. Connect the drain wire of the
shielded cable to the GND contact of the interface module's
reader port. For OSDP daisy-chained readers, do not connect the
drain wire to the last reader.
B
Reader connections (Wiegand only)a
TB3: Reader 2
Note: The wire colors in the illustration refer to
"pigtail" HID readers; the information in parentheses refers to
"terminal block" HID readers. Connect the drain wire of the
shielded cable to the GND contact of the interface module's
reader port.
C
RS-485 bus
RS-485 bus connection to other Mercury modules.
Note: When using
the TB2 port for RS-485, the controller can only support one
reader (TB3) in Wiegand mode.
D
Power In
Connect + to VIN (observe polarity). Connect - to GND. Use 20 AWG
wires minimum.
Note: Set jumper J3 to 12V.
E
Ethernet cable
Connect to the Synergis Cloud Link directly or through the
network infrastructure.
F
Address switches
Used to set the device address. For more information on address
settings on the Mercury controller, refer to the manufacturer's
instructions.
G
Relay outputs
2A inductive @30 V dc, 0.6 PF
H
Resistors
For OSDP integrations, prevent readers from misinterpreting noise
as data on a non-driven RS-485 line by installing a 1k ohm pull-down
resistor from D0 to GND on TB2.
For wiring distances over 10
meters, install a 120 ohm termination resistor between D0 and
D1, as well as between A (-) and B (+) on the RS-485 bus of the
last connected reader.
To find out whether you need to add a 1K ohm pull-down resistor between D0 and GND, see KBA-78953.
aMercury LP1501 controllers are only capable of driving an OSDP reader
from TB2.
