1738-AENTR A -B Controller module

Description

1738-AENTR A -B Controller moduledule
Brand：A -B Model number：1738-AENTR
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: USA
Price: Please contact us Product weight：2.145kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
Product details:

The 1786-RPFRL/B or 1786-RPFRXL/B long or extra-long modules can be used to create a redundant optical link
between segments. When used in a ring topology, a media failure between any two repeater modules in a ring does not
affect the communication link.
The repeaters detect the failure of an optical link. When a failure occurs, the affected channel port status indicator displays
one of the following:
• Red, indicating a faulty link
• Flashing green/off, indicating no network activity is present
See Status Indicators on page 29 for more information.
In addition, a relay contact connector on the 1786-RPFRL/B and 1786-RPFRXL/B modules indicates a remote faulty
link. See page 30 for more information on the relay contact connector.
We recommend that you install the duplex optical cables of the two optical channels along different routes. For more
information on cabling, refer to the ControlNet Fiber Media Planning and Installation Guide, publication CNET-IN001.
The fiber repeater consists of the following:
• A 1786-RPA/B repeater adapter
• Up to two 1786-RPFRL/B or 1786-RPFRXL/B long or extra-long fiber repeater modules
• Up to four 1786-RPCD copper fiber repeater modules
• Up to four 1786-RPFS or 1786-RPFM short- or medium-distance fiber repeater modules
The maximum number of repeater modules (in any combination) you can use in a configuration is dependent on the
current draw of each repeater module. Total current draw supplied by the 1786-RPA/B repeater adapter cannot exceed
1.6 A  .
You can also use the fiber repeater to do the following:
• Extend the total length of your segment
• Create a point-to-point or star configuration (multiple directions from one point)
• Provide electrical isolation and immunity to interference
• Use in hazardous areas
The number of fiber repeaters and cable length total limit depends on your network topology.

This example shows you in a simple way how to account for worst-case delays.
To determine the worst-case delay in a ring topology, first disregard the shortest fiber segment in the system.
In Figure 3 on page27, the shortest segment is segment H, with the 200 m fiber. Remove segment H. You see that the worst-case
delay is now between nodes 1 and 2.
You must account for worst-case delays that the physical media introduces when configuring the media configuration screen in
RSNetWorx™ software. If too many components with too great a delay are entered into RSNetWorx for ControlNet software, the
delay becomes too great for the bandwidth RSNetWorx software has available. This delay affects system performance and limits
network length. If you do not account for all media components in the worst-case delay path, erratic network operation can
result. See the documentation that is supplied with RSNetWorx for more information on system delays. In this example, you enter
the total length of all media components between nodes 1 and 2 into RSNetWorx for ControlNet software. The totals of the
components between nodes 1 and 2 are as follows, as specified in Table 16 on page27:

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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