User guide

2-12 Encore Multi-port DSU/CSU User GuideÑJuly, 1997
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To connect the DSU/CSU to the DTE devices:
1. Using the appropriate DTE cable, connect the cable to the DB-25 female
port on the DSU/CSU, labeled PORT 1, and to the V.35 or RS-449 port on
the Þrst DTE device.
2. Using the appropriate DTE cable, connect the cable to the DB-25 female
port on the DSU/CSU, labeled PORT 2, and to the V.35 or RS-449 port on
the second DTE device.
Use this method to connect the DSU/CSU to the other DTE devices.
Connecting the AUX Port to Ancillary Equipment
When you connect the ancillary equipment or the PBX to the AUX port, you may need
to increase the distance between the DSU/CSU and the DS1 cross connect (patch
panel) or the DS1 device (by setting the line equalization in Equalization in Menu-4
Main ConÞguration (refer to ConÞguring the Menu-4 Main Parameters on page 3-11).
To connect the ancillary equipment to the AUX port:
1. Using the cable from Digital Link with a female DA-15 connector, connect
the cable to the AUX port, labeled AUX, and to the ancillary equipment or
PBX.
Connecting to the T1 Network
Before you connect a Multi-port Encore DSU/CSU to the T1 network, make sure you
are using the correct cable and have determined the correct distance between the
DSU/CSU and the T1 cable.
About the Cabling
Use a North American standard T1 cable, a twisted-pair cable with 100 ohm
impedance, commonly referred to as T-Screen or ABAM (or its equivalent) to connect a
T1 cable to the DSU/CSU. Digital Link has designed the DSU/CSUs to operate with
this cable.