Actisense

Actisense 1 OPTO inputs, 6 ISO-Drive outputs, Serial Port, pluggable screw terminals

£280.48
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PRO-NBF-1
RINA type approved NMEA 0183 buffer that safely distributes one talker to six listeners. One OPTO-isolated input and six ISO-Drive isolated outputs give full ground-loop protection at up to 115200 baud. Rugged 316 stainless steel housing with pluggable screw terminals.

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Description

The Actisense PRO-NBF-1 is a RINA type approved NMEA 0183 buffer that safely connects one talker to as many as six listeners. It isolates and buffers the incoming NMEA 0183 data, distributing up to six identical, amplified streams from a single source so that every listener receives data at the required voltage level and consistent quality is maintained across the network.

Isolation on both the input and the outputs protects the source talker and every connected listener. A single OPTO-isolated input and six ISO-Drive isolated outputs let the buffer be wired in with complete peace of mind, eliminating the ground loops that are the leading cause of NMEA 0183 equipment failure. The unit needs no configuration and works with RS422, RS232 and RS485 connections at up to 115200 baud with automatic autobaud detection.

The rugged 316 stainless steel housing also acts as an RF shield, making it an ideal addition to commercial installations. Two-part pluggable screw terminals and a professional DIN rail mounting system make installation quick, and diagnostic LEDs confirm power, input and output activity at a glance.

PRODUCT DETAILS

  • Distributes one NMEA 0183 talker to six isolated, amplified listener outputs
  • One OPTO-isolated input and six ISO-Drive isolated outputs prevent ground loops
  • Compatible with RS422, RS232 and RS485 connections up to 115200 baud
  • Automatic autobaud detection means no configuration is required
  • Rugged 316 stainless steel housing doubles as an RF shield
  • Two-part pluggable screw terminals with professional DIN rail mounting
  • Diagnostic LEDs for power, input and output activity
  • RINA type approved with 1000V isolation on input and outputs
  • PRO-NBF-1 NMEA 0183 buffer
  • Two-part pluggable screw terminal connectors
  • Mounting screws
  • Quick start guide

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Power

Input Supply Voltage9 to 35 V DC
Input Supply Current150mA max @ 12V DC (all outputs at full drive into 100 ohm loads)
Input ProtectionContinuous reverse polarity and ESD protection

NMEA 0183 Ports

Listener / Input PortsOne isolated NMEA 0183 Listener
Talker / Output PortsSix isolated NMEA 0183 Talkers
CompatibilityFully NMEA 0183, RS422 & RS232 compatible. RS485 Listener compatible
Speed / Baud Rate4800 to 115200 bps

Isolation

NMEA 0183 ListenerOPTO-Isolated, Hi-Pot tested to 1000V
NMEA 0183 TalkerUses ISO-Drive, Hi-Pot tested to 1000V

Mechanical

Housing Material316 Stainless Steel
Dimensions139mm (L) x 128mm (W) x 27mm (H)
Weight335g
MountingBulkhead mount or DIN rail mount (DIN-KIT-1)

Environmental & Approvals

EMCIEC 60945:2002-08, DNVGL-CG-0339:2019 & IACS UR E10 Rev7
Compass Safe Distance600mm
Type ApprovalRINA
Operating Temperature-25 to +70 C
Storage Temperature-40 to +85 C
Relative Humidity95% @ 55 C
Environmental ProtectionIP40
Guarantee5 Years

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Why do I need a buffer to connect one talker to several listeners?
The NMEA 0183 standard limits how many listeners a single talker can drive before the signal weakens. The PRO-NBF-1 buffers and amplifies the source into six identical isolated outputs, ensuring each listener receives the data at the correct voltage.
Does the PRO-NBF-1 need configuring before use?
No. The PRO-NBF-1 requires no configuration. It automatically detects the incoming baud rate up to 115200 baud, so you simply wire it in and power it up.
Is the PRO-NBF-1 suitable for commercial installations?
Yes. It is RINA type approved and its 316 stainless steel housing acts as an RF shield, meeting IEC 60945, DNVGL-CG-0339 and IACS UR E10 requirements for commercial and class installations.