Why IRIG-B TTL to IRIG-B RS485 required?
The IRIG-B TTL signal is a me synchronizaon protocol that can be
transmied up to 50m maximum using coaxial cable. So the relay
which is to be received the IRIG-B TTL signal may be far away from the
IRIG-B source. The relay may be not able to synchronize with the GPS.
To avoid such an incident in the field, some of the relays have provision
to receive IRIG-B RS485 signal. The IRIG-B RS485 signal can able
travel up to 1200m without any booster. All Time source equipment
may not be supplied with IRIG-B RS485 signal output. The converter
will act as a bridge between GPS Time source and Relays for me
synchronizaon.
Features
Converts the IRIG-B TTL to IRIG-B RS485 signal
Industrial grade enclosed in a rugged, rustless housing
Wall mountable
RS485 signal can be transmied up to 1200m
LED indicaons for Power & signal outputs
The supply voltage can be customized
Built-in surge protecon and stac protecon
Built-in 120-ohm terminaon resistor
Applicaon
Substaon
Power Generaon and Distribuon plant
Specificaon
Power Supply
Environment
Operang Temp 0°to 50°C
Humidity 95% Non-Condensing
Mechanical
Input Signal
IRIG-B (PWM/TTL)
Connector BNC, Female
Logic 0 :0V +250mV
Logic 1 :3V to 5V +10%
User Interface
Status LED Signal & Power
Installaon Wall Mountable
Dimension 40mm (H) x 100mm (W) x 135mm (D) ±5mm
Weight <250g
Protecon Class IP20
Output Signal
Output IRIG-B RS485
Distance 1200m
Number of Output 1
Connector Pluggable Terminal Block, 120Ω
Installaon
The following describes the installaon of the System hardware.
Connect power supply
Connecon of the IRIG-B signal from IRIG-B Source
Switch on the power supply
Observe SIG LED Blinking & Power LED Glows Red
Dimensional Drawing
Standard 85 to 260V AC, 1φ, (47Hz to 63Hz) or
90V to 370V DC
Custom 24VDC or 48VDC
Power Consumpon <5W
Installaon of the Enclosure
The System is assembled in a Wall Mountable Enclosure
The following steps are to be carried out:
Place the unit in the control panel and fix the mounng
brackets on the front side of the rack using Screws.
Ensure that there is sufficient space between the connecon
side of the rack and the control panel to allow for the
connecon of cables to the System.
Note: At higher temperatures, acve cooling/venlaon is
recommended.
Overview
SLC-1010 series converter is used to convert the IRIG-B TTL to IRIG-B
RS485 signal. It provides easy and affordable connecvity to
substaon equipment and power generaon and distribuon
equipment. It converts the IRIG-B TTL input format like 002, 004, 006
& IEEE1344 and IEEE C37.118 to RS485 output with the same format.
With this Plug-N-Play unit, you can expand your IRIG-B TTL signal to a
long distance. The converter supports 2-wire RS-485. It can able to
support a minimum of 32 nodes or 128 nodes (1/4 UL) based on unit
load. It is rugged and surge-protected equipment. Its cabinet can be
mounted directly on a wall without the need for addional brackets. It
has an inbuilt power supply module, therefore, doing away with the
need for an external power adapter. It consists of BNC connector for
IRIG-B TTL input and a terminal block for IRIG-B RS485 outputs. There
is a LED indicaon for Power & signal outputs. The power supply can
be customized when ordering.
