User guide

2-10 Encore Multi-port DSU/CSU User GuideÑJuly, 1997
2
6. Connect a third safety ground wire to the ground stud using a 1/4" wrench
and a 5 Lb-ins fastening torque and to a good ground.
7. To minimize disturbance to the wires through casual contact, secure the
tray cable near the rack frame using multiple cable ties. Use at least four
cable ties, a minimum of 4 inches apart, tying the Þrst tie within 6" of the
terminal block (a cable tie mount is provided).
8. Connect the VX Encore to the DC power source.
The TEST LED on the front panel ßashes as the DSU/CSU automatically runs the Self
Test at power up. When the test is successfully completed, RUNNING SELF TEST and
SELF TEST PASSED appears on the front panel display. (If the test fails, TEST LED
turns red for 10 seconds and then green.)
Grounding
Once you connect the DSU/CSU to the network, you must connect an earth ground
cable to the ground stud on the back panel. (Refer to Equipment Grounding Conductor on
page A-10.)
Figure 2-5 Back Panel Ground Stud
Connecting to the DTE Devices
Once you have conÞgured the DSU/CSU, you are ready to connect it to the DTE
devices, the ancillary equipment (if using the optional AUX port) and to the network.
PORT 2
PORT 1
IN
COMM
PORT
EXT
CLOCK
RTN
OUT
DC
POWER
+
_
U
X
C
V
AUX
XMT
ALARM
Ground stud