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Connecting the STH to the Power Source
Page 3-7
3.2.7 Connecting the STH to the Power Source
Note: The STH has a universal power supply which will accept power
sources from 90 Vac to 264 Vac, 47-63 Hz.
To connect the STH to the power source:
1. Plug the power cord into the back panel of the STH.
2. Plug the other end of the power cord into a grounded wall outlet.
3. Verify that the PWR LED is on, this indicates that the STH is receiving
power.
3.2.8 Attaching Network Cabling to TCU Ports
Twisted pair segments are connected to the RJ45 TCU Ports on the front
panel of the STH. To connect twisted pair segments to the STH:
1. Insert the RJ45 connector from each twisted pair segment into the
desired network port on the STH. See Figure 3-8.
Figure 3-8. TCU Port Connections
2. Confirm that the port’s corresponding LNK LED is on. If the LED is
not on, perform each of the following steps:
a. Check that the Token Ring device at the other end of the twisted
pair segment is powered up.
b. Verify that the RJ45 connector on the twisted pair segment has the
proper pinouts. Check the cable for continuity.
6X
5X
4X
3X
2X
1X
18X
17X
16X
15X
14X
13X