User's Manual

Table Of Contents
34 UltraWAVE Micro BTS Installation and Commissioning Guide, Version B
Chapter 2 - Installation
2.3.2 Configuring Cable Length DIP Switch Settings
on T1 Cards
To configure the DIP switch settings on a T1 card:
1 Ensure that anti-static precautions are taken. Refer to Section 1.2 for
anti-static precautions.
2 Make note of the orientation of the cables and disconnect them from the
selected card.
3 Using a Phillips screwdriver, fully loosen the two captive screws located at the
top and bottom of the card.
4 Remove the T1 card by firmly pulling the two white tabs located at the top and
bottom of the card.
5 See Figure 2-7 to locate the DIP switch.
6 On T1 cards, the DIP switch setting is determined by the cable distance from
the card to the DSX-1 demarcation point. The following table provides the
appropriate Port 0 and Port 1 DIP switch settings for DSX-1 demarcation
points located within various cable distance ranges.
In Table 2-9, the first setting (0-133 ft.) is the default and should
be used for all T1 applications unless
connecting to a DSX-1
demarcation point beyond 133 ft. When connecting two chassis
you will always use the first setting regardless of distance (up to
600 m).
Table 2-9: T1 DIP Switch Settings
Port 0
Switch Setting
1-2-3-4
Port 1
Switch Setting
5-6-7-8
Cable distance from T1 Card to
DSX-1 Demarcation Point
Feet (Meters)
OFF-ON-ON-ON OFF-ON-ON-ON 0-133 (0-40.57)
OFF-OFF-ON-ON OFF-OFF-ON-ON 133-266 (40.57-81.13)
OFF-ON-OFF-ON OFF-ON-OFF-ON 266-399 (81.13-121.7)
OFF-OFF-OFF-ON OFF-OFF-OFF-ON 399-533 (121.7-162.57)
OFF-ON-ON-OFF OFF-ON-ON-OFF 533-655 (162.57-199.78)
Note: ON refers to the DIP switch pin being in the “UP” position and OFF refers to the
DIP switch pin being in the “DOWN” position. X = either ON or OFF.