Allen-Bradley 1747-SN - Page 42

3–5Installation and Wiring
Publication 17476.6 - July 1996
Baud Rate
Maximum Cable Distance
(Belden 9463)
Resistor Size
Using Extended Node
57.6K baud 3048 meters (10,000 feet)
82W 1/2 Watt
Using Extended Node
Capability
115.2K baud 1524 meters (5,000 feet)
82W 1/2 Watt
Brown Green Brown Gold
Capability
230.4K baud
762 meters (2,500 feet)
Brown-Green-Brown-Gold
57.6K baud 3048 meters (10,000 feet)
150W 1/2 Watt
Not Using Extended Node
115.2K baud
1524 meters (5,000 feet)
150W
1/2
Watt
Brown-Green-Brown-Gold
Not
Using
Extended
Node
Capability
230.4K baud 762 meters (2,500 feet)
82W 1/2 Watt
Gray-Red-Black-Gold
LINE 1 _______
LINE 2 _______
RIO Link
Connector
RIO Scanner
Line 1 – Blue
Line 2 – Clear
For New Installations - T o ensure a proper earth ground of the cable shield, follow these steps:
1. While the RIO link connector is plugged into the scanner and lines 1 and 2 are connected, strip the cable back to expose enough shield drain wire to reach
a chassis mounting bracket.
2.
Attach the ring terminal lug (supplied) to the end of the shield drain wire.
3. Attach the ring terminal lug to the SLC chassis mounting bracket. Note that for new installations the middle (shield) terminal is not used when connecting to
the scanner .
Important:
The RIO cable shield must be grounded at the scanner end only .
For Series A Scanner Retrofits - T
o eliminate the need to strip the cable back, follow these steps:
1. Attach the shield wire and a short piece of #20 AWG wire (dotted line) to the shield lug of the RIO Link Connector .
2.
Attach the other end of the #20 A WG wire to the ring terminal lug.
3. Attach the ring terminal lug to a chassis mounting bracket.
Important:
The RIO cable shield must be grounded at the scanner end only .
Ensure that the unshielded portion of the link communication wire (blue and clear) is as short as possible.
Chassis
Mounting
Bracket
RIO Link
Connector
Terminating
Resistor Last Physical
Device End
Terminating
Resistor
Scanner End
Shield Drain Wire
Shield – Shield
SHIELD _____
For New Installations
Using Series B
Scanners
For Series A
Scanner
Retrofits
Shield Drain Wire
Ring Lug