Likewise, the data terminal block has two sets of three terminals. Use one set of terminals for data IN
and one set of terminals for data THRU. It does not matter which set of terminals you use for data IN
and which set for data THRU.
If you are relaying data to the next fixture in the daisy-chain using an external junction box, you do not
need to make data THRU connections inside the fixture.
Installation layout options
There are two options for connecting the Exterior Projection Pro Compact to power and data:
1. Separate mains power and data links
In this configuration, you connect fixtures to separate AC mains power and DMX/RDM data links via
one power input cable and one data input cable. Each cable is passed through its own cable gland on
the rear of the fixture. If you need to connect fixtures to power and data in a daisy-chain, you must split
the power and data links inside junction boxes as shown below (you can of course also use separate
junction boxes for power and for data):
Mains
power
Mains
power
Data
Junction box
For instructions on connecting fixtures in this configuration, see 'Connecting via separate power and
data cables' on page 35.
2. Hybrid (power and data) link via Martin PD cable
In this configuration, you connect fixtures to one hybrid (combined power and data) link via two cable
tails, one for power and data IN and one for power and data THRU. All cable and connectors are PD
type, available from Martin. PD connectors are IP67-rated. Each cable tail is passed through its own
cable gland on the rear of the fixture. PD cable tails are connected to a hybrid (power and data) link
using PD cable connectors as shown below:
PD cable
tails
PD cable
Hybrid link
PD cable tails that are suitable for the Exterior Projection Pro Compact are available from Martin as
accessories:
• PD Cable Tails Set, 0.5 m, Black, EU, P/N MAR-91700020
• PD Cable Tails Set, 0.5 m, White, EU, P/N MAR-91700022
Each set consists of 1 x IN and 1 x THRU cable tail with PD connectors installed on one end of each
cable.
34
Exterior Projection Pro Compact Safety and Installation Manual
Mains
Data
power
Junction box
PD cable connectors
Mains
Data
power
Junction box
Data
Mains
power
Data