Rockwell Automation 1771ACN/B_1771ACNR/B,D17716.5.123 U.MNL CONTROLNET ADAPTER - Manual (Page 21)

Installing Your ControlNet Adapter Module 2–7
Publication 1771-6.5.123 – May 1996
!
ATTENTION: Do not force the module into the
backplane connector. If you cannot seat the module
with firm pressure, check the alignment and keying.
Forcing the module can damage the backplane
connector or the module.
5. Snap the chassis locking bar (or locking latch on earlier chassis)
over the top of the module to secure it. Make sure the locking
pins on the locking bar are fully engaged.
Note: The chassis locking bar will not close if all modules are not
properly seated.
Connecting Your Adapter to the ControlNet Network
You connect your 1771-ACN or -ACNR adapter module to a
ControlNet network via taps. These taps are available:
Straight T-tap Straight Y-tap Right-angle T-tap Right-angle Y-tap
1786-TPS 1786-TPYS 1786-TPR 1786-TPYR
Important: Taps contain passive electronics and must be purchased
from Allen-Bradley for the network to function
properly.
1. Remove the tap’s dust cap (located on the straight or right
angle connector).
If your node supports: Connect the tap’s straight or right angle connector:
Non-redundant media to the channel A connector on the 1771-ACN or 1771-ACNR
(channel B on the 1771-ACNR is not used)➀
Redundant media
•
from trunkline A to channel A on the 1771-ACNR
•
from trunkline B to channel B on the 1771-ACNR
➀ While both channels are active, Allen-Bradley recommends using channel A for non-redundant media.