4.1 Installation and Wiring of Optical Shared Hub Unit
4.1.3
Stacking cable connection
If the master shared hub units (UTNH21A, UTNH21B) alone are short of ports, slave
optical shared hub units (UTNH22) may be stacked using the 50-pin stacking cable (23
cm) supplied with the UTNH22.
(1) Remove the dust cover from the stacking connector to connect.
Optical shared hub unit
4
Dust cover
Figure 4-6 Removing Dust Cover from Stacking Connector
(2) Insert the stacking cable into the stacking connector till it clicks.
Stacking cable
Stacking connector
Figure 4-7 Connecting Stacking Cable
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