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TT-NRM
Network relay Module INstallatIoN INstructIoNs
THERMAL MANAGEMENT SOLUTIONS
EN-TraceTekTTNRM-IM-H57474 01/13
TT-NRM-BASE
unit with four
TT-NRM-2RO
modules removed
ON
TxD
I/O
RUN
I/O
ERR
RxD
CRC
750
-31
2
x 10
–
+
DEScRIpTION
The TraceTek Network Relay Module provides multiple relay
outputs for switching alarm or control devices for the leak detection
system. TT-NRM units are modular and may be configured with 2 to
32 relay outputs. A single TTDM-128 unit communicates with up to
up to 20 NRMs over a single, twisted pair RS-485 cable.
ADDITIONAL MATERIALS REqUIRED
• TT-NRM-2RO, 2-channel relay output module (marked 750-517)
[up to 15 additional modules may be added to one TT-NRM-BASE]
• RS-485 cable, 1 shielded twisted pair [TT-RS485-BULK or
equivalent]
• Suitable enclosure or panel
• Additional wire, as necessary
TOOLS REqUIRED
• 3.5-mm flat-blade terminal screwdriver
• Wire stripper/cutter
REfERENcE DOcUMENTS
• TTDM-128 Installation Manual (H57341)
• TTDM-128 User Manual (H56583)
SpEcIfIcATIONS
Function
Provides relay outputs to switch power to
contactors under control of the TTDM-128
Ambient operating range 0°C to 55°C (32°F to 130°F)
Ambient storage range –40°C to 60°C (–40°F to 140°F)
Relative humidity
5% to 95%, noncondensing
Supply voltage
94-264 Vac
Supply current
60 VA max.
Relay output type
Mechanical, normally open, voltage free
Relay output rating
230 Vac, 30 Vdc, 2 A max.
Communications
RS-485, single shielded twisted pair,
max. 20 NRM units per network
Connection terminals
28–12 AWG (0.08–2.5 mm
2
)
This component is an electrical device. It must be installed
correctly to ensure proper operation and to prevent shock or fire.
Read and carefully follow these important installation instructions.
WARNING:
KIT cONTENTS
TT-NRM-BASE:
1 Network processor (marked 750-315)
1 24 Vdc power supply (marked 5101-7663)
1 Relay output module (marked 750-517)
1 End termination module (marked 750-600)
1 RS-485 network connection module
1 Ribbon cable with screws
1 DIN 35 rail for mounting
1 Ground terminal
2 DIN rail end stops
AppROvALS
