Gmc Turbo System - Allen-Bradley 1394 User Manual

Wiring 1394 GMC and GMC Turbo Systems

GMC Turbo System

For those applications that require longer AxisLink cable lengths, the
GMC Turbo offers the AxisLink Extended Length option. The
Extended Length option allows the user to support up to eight nodes
for a maximum end-to-end cable length of 125 m (410 ft) (user
supplied cable). To enable the Extended Length option, set the switch
located between the Flex I/O and AxisLink connectors on the bottom
of the GMC Turbo system module. See Figure 4.7 for the switch's
location and Figure 4.14 for switch settings.
The Extended Node option allows the user to support up to 16 nodes
for a maximum end-to-end cable length of 25 m (82 ft). This feature
is enabled in GML version 3.9.1 (or higher) with Firmware version
3.5 (or higher).
Important: You cannot use the Extended node option if the
Extended Length option is enabled.
Figure 4.13
AxisLink Connections for a GMC Turbo with Extended Length Option Enabled
Connects to J1
Extended Length
AxisLink Connector
1
2
Yellow
Black
Shield
Recommended cable
(Belden 9182, Carol C8014
or equivalent)
Figure 4.14
AxisLink Extend Length Switch Setting
AxisLink Extended
Length Enabled
Flex I/O connector
AxisLink connector
AxisLink Extended
Length Disabled
Bottom Edge of the1394 GMC Turbo Board
300 ohm
Install a 300 ohm termination resistor
across 1 and 2 if this is the first or last
module on the line.
Publication 1394-5.0 — May 2000
4-15