Ver. 1 July 14, 2022
PN: 002-00100-00 REV 1.0
RSS Transmitter with Pure Signal Technology (PST) - Quick Start Guide
Pg 2 of 3
!POWER MUST BE DISCONNECTED THROUGHOUT THIS STEP.
2.2 Wiring multiple RSS Transmitters
2.3 Connecting the RSS Cores
If multiple RSS Transmitters exist in the system, the most effective way to mitigate crosstalk is to synchronize
the signal between the transmitters in a Leader-Follower method.
If only one transmitter is required, skip this step.
• Connect up to 10 RSS Transmitters
with PST.
• The total length of daisy-chain signal
wiring must not exceed 100ft (30m).
• Use 22-14 AWG twisted pair wire
(shielded recommended).
• Wire as shown
• Torque to 0.4Nm (3.5LB-in)
The RSS cores connect to the lower terminals of the RSS Transmitter.
1. Insert the wire with the white ferrule into the white terminal of
the Core 1 input (left side). Torque to 0.5 Nm max.
2. Insert the wire with the black ferrule into the black terminal.
Torque to 0.5 Nm max.
3. Repeat at Core 2 input (9) for two-core applications.
1. Using a red 22-14 AWG conductor, connect the 12V
output of the power supply to the + (1) and torque to
0.4Nm (3.5lb-in).
2. Using an 22-14 AWG black conductor, connect the 12Vdc-
of the power supply to the - terminal of the transmitter
(2) and torque to 0.4Nm (3.5lb-in).
3. Using an 22-14 AWG grounding conductor, connect the
AC and DC ground wires of the Power Supply to DIN rail.
!The RSS Transmitter MUST be on the same AC branch circuit as the inverter to meet NEC
690.12 Rapid Shutdown requirements.
You must complete Section 2.2 before powering on the RSS Transmitters.
2.4 Powering the RSS Transmitter
Each RSS Transmitter with PST requires 12VDC (+/-2%) and 1A from a DC power supply. The optional RSS
Transmitter Kits include a power supply. If sourcing a third party power supply, ensure the specication meet
the requirements found in the installation manual.
The RSS Cores are colored black and white to indicate signal directionality. The ends of the Core wires are
colored to match the RSSx and terminals.
At this time, the TS4-A-F/2F should be installed. No power is applied to the RSS Transmitter.
4. Route the PV array homeruns into the enclosure.
Pass only the negative homeruns through the RSS
Transmitter Core, with the black side of the Core
facing towards the PV array (polarity matters).
Continue the homeruns to the PV inverter. Each Core
can accommodate up to 10 homeruns. Use additional
Cores as necessary.
5. Pull conductors through the enclosure to the next
termination point (inverter).
1. Mount enclosure with appropriate mounting hardware for the surface.
2. Securely install the Ground terminal, power supply and RSS Transmitter with PST onto the 35mm Din Rail.
3. Route conduit to the enclosure. Use appropriate weather-tight ttings and bond conduit, as necessary.
Connect to ground terminal.
2.1 Installing the RSS Transmitter Kit
Prior to mounting, drill out all applicable conduit openings.
!Install the TS4-A-F and/or TS4-A-2F BEFORE powering on the RSS transmitter.
!The RSS Transmitter Kits include a DIN Rail power supply, RSS Transmitter with PST and a grounding
terminal. If not using a Tigo enclosure, conrm a 35mm DIN Rail can be installed and maintain the
environmental ratings of the equipment installed.
!Always use appropriate PPE.
!Always abide by prevailing codes/requirements to determine the number of PV
conductors that can t inside the 25.4mm (I.D.) core. Wire gauges and suppliers vary.
2. Installation
4
-12V
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
-12V
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
2 3
RSSx Leader RSSx Follower 1… ….RSSx Follower 10
-12V
-12V
-12V
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN
Top view of RSS Tx with Pure Signal Technology
+
12V
PWR
COM
Tx
OUT
COM
Rx
IN +
12V
PWR
COM
Tx
OUT
COM
Rx
IN
Bottom view of RSS Tx
