Skip to main content.

Copper IRIG-B Distribution System

Available for the Model 1088 with Option 18 - IRIG-B Distribution Bus, Fault Monitor, and Second RS-232

Additional resources for the Copper IRIG-B Distribution System and Option 18
  • Self-Monitor, IRIG-B Distribution System, and Second RS-232Self-Monitor, IRIG-B Distribution System, and Second RS-232 brief overview.
  • Self-Monitor, IRIG-B Distribution System, and Second RS-232 [PDF~107.9 kB] detailed overview.
  • Please review Application Note 101 [PDF~91.2 kB] "Distributing Timing Signals in a High-EMI Environment" for additional implementation information.

10882A IRIG-B Distribution Tap

The Model 10882A tap is used to provide a decoupled, isolated output signal to your system loads. The source impedance of this tap is approximately 600 ohms, and it will provide an open-circuit signal level of 6.4 to 11 Vpp, depending on overall system loading and distance from the clock mainframe. Each tap provides 3750 Vrms isolation from the distribution bus to the load, as well as surge suppression and EMI filtering. The taps are capacitively-isolated from the dc bus monitoring current.

10882A IRIG-B Distribution Tap
Optional equipment may be shown.
 10882A IRIG-B Distribution Tap
10882A IRIG-B Distribution Tap Label
10882A IRIG-B Distribution Tap
Optional equipment may be shown.
 10882A IRIG-B Distribution Tap
10882A IRIG-B Distribution Tap Connectors

10883A IRIG-B Distribution Splitter

The Model 10883A splitter is used to drive a branch from the main distribution bus, or to split a bus into two branches. It drives the two output branches in parallel as far as the IRIG-B signal is concerned, while they are connected in series for the dc loop monitoring current.

10883A IRIG-B Distribution Splitter
Optional equipment may be shown.
 10883A IRIG-B Distribution Splitter
10883A IRIG-B Distribution Splitter Label
10883A IRIG-B Distribution Splitter
Optional equipment may be shown.
 10883A IRIG-B Distribution Splitter
10883A IRIG-B Distribution Splitter Connectors

10884A IRIG-B Distribution Terminator

One Model 10884A terminator is located at the end of a linear distribution bus, and one at the end of each branch. This inductive terminator provides a high impedance to the IRIG-B signal while providing a return path for the dc loop current used for continuity monitoring.

10884A IRIG-B Distribution Terminator
Optional equipment may be shown.
 10884A IRIG-B Distribution Terminator
10884A IRIG-B Distribution Terminator Label
10884A IRIG-B Distribution Terminator
Optional equipment may be shown.
 10884A IRIG-B Distribution Terminator
10884A IRIG-B Distribution Terminator Connectors

10885A IRIG-B Distribution Redundant Ring Adapter

Even in the presence of a break in the cable, service may be maintained at all taps, and the break detected and reported for maintenance, using the Model 10885A IRIG-B Distribution Redundant-Ring Adapter with a ring or loop-configured distribution bus (where the "far end" of the bus is physically brought back to the start). This allows the system to offer a substantial degree of survivability with respect to broken cables, while nonetheless reporting the problem for corrective action. The Model 10885A also provides 3750 Vrms isolation from the return end of the bus to the clock mainframe, to prevent voltages induced in the bus loop from causing currents to flow in the distribution bus or its shield.

10885A IRIG-B Distribution Redundant Ring Adapter
Optional equipment may be shown.
 10885A IRIG-B Distribution Redundant Ring Adapter
10885A IRIG-B Distribution Redundant Ring Adapter Label
10885A IRIG-B Distribution Redundant Ring Adapter
Optional equipment may be shown.
 10885A IRIG-B Distribution Redundant Ring Adapter
10885A IRIG-B Distribution Redundant Ring Adapter Connectors

10886A IRIG-B Distribution Cable, 300 m (1000 ft)

The 10886A is a very special cable that we have yet to specify due to lack of interest.

10887A ISOLATED REPEATER

The 10887A is not really part of the Copper IRIG-B Distribution System but it is derived from it. It works with unmodulated IRIG-B and isolates the source from the end device.

10887Aopt01 Isolated Repeater Label (BNC Input and BNC Output)
10887A Isolated Repeater
Optional equipment may be shown.
 10887A Isolated Repeater
10887Aopt01 Isolated Repeater Label (BNC Input and BNC Output)		 10887Aopt01 Isolated Repeater Label (BNC Input and BNC Output)
10887A Isolated Repeater
Optional equipment may be shown.
 10887A Isolated Repeater
10887Aopt01 Isolated Repeater Connectors (BNC Input and BNC Output)
10887Aopt02 Isolated Repeater Connectors (Pluggable Terminal Input and BNC Output)
10887A Isolated Repeater
Optional equipment may be shown.
 10887A Isolated Repeater
10887Aopt02 Isolated Repeater Label (Pluggable Terminal Input and BNC Output)		 10887Aopt02 Isolated Repeater Connectors (Pluggable Terminal Input and BNC Output)
10887A Isolated Repeater
Optional equipment may be shown.
 10887A Isolated Repeater
10887Aopt02 Isolated Repeater Connectors (Pluggable Terminal Input and BNC Output)
All available 10887A configurations:
  • 10887Aopt01 Isolated Repeater (BNC Input and BNC Output)
  • 10887Aopt02 Isolated Repeater (Pluggable Terminal Input and BNC Output)
  • 10887Aopt03 Isolated Repeater (BNC Input and Pluggable Terminal Output)
  • 10887Aopt04 Isolated Repeater (Pluggable Terminal Input and Pluggable Terminal Output)

AS0028100 600 OHM IRIG-B ISOLATATION TRANSFORMER

The AS0028100 is not really part of the Copper IRIG-B Distribution System but it is derived from it. It works with modulated IRIG-B and isolates the source from the end device.

AS0028100 600 Ohm IRIG-B Isolation Transformer
Optional equipment may be shown.
 AS0028100 600 Ohm IRIG-B Isolation Transformer Connectors
AS0028100 600 Ohm IRIG-B Isolation Transformer Connectors