Motorola SC 4812ET RF Hardware Installation Manual page 92

Cabinet Cabling
– continued
Materials needed
Procedure
5
92
Table 5-4 lists the quantity and description of the necessary materials.
Table 5-4: Materials Required for Alarm, Span, and Modem Cabling
Cable Qty
A 1
NOTE
The modem lines (2–wire, 1 pair) can be run on a separate cable from the
Span Lines if more appropriate for the installation.
B 1
Refer to Table 5-4 and Figure 5-6 and follow the procedures in Table 5-5
to install the Alarm, Span, and Modem Line cabling.
Table 5-5: Alarm, Span, and Modem Line Cable Install Procedure
Step
1 Route the conduits for the twisted pair cables (A, B) to the I/O area of
the RF Cabinet. Refer to Figure 5-1 and Figure 5-2 for recommended
location.
NOTE
This step is omitted if the conduits are already in place in the concrete
pad.
2 Route the twisted pair cable(s) (A, B) through the previously installed
conduits and to the punch block through the rubber boot in the floor
of the I/O area (See Figure 5-6).
NOTE
The rubber boot is sized to seal a cable with an outer diameter of
either 1/4" or 1/2", if a different sized cable is used heat/cold shrink or
other means may be required to ensure a good seal. A tie wrap or
hose clamp must be used to ensure a good seal around the cables at
the boot.
3 Connect the Alarm, Span, and Modem Line pairs from the cable to
the punch block (using only the recommended 110 style punch tool
per the pin call–outs in Table 5-7.
4 Strain relief the cables (A, B) by tie wrapping it to the punch block
mounting bracket as shown in Figure 5-5.
SC 4812ET RF and Power Cabinet Hardware Installation Manual
TM
Description
T1 Span Line and Modem Cable, #22 or #24 AWG,
26-wire, shielded twisted 13 pair, 100-Ohm, solid wire. E1
Span Line requires 120–Ohm twisted pair lines.
Alarm (Customer I/O) Cable, #22 and #24 AWG, 32-wire,
shielded twisted 16 pair, 100-Ohm, solid wire.
Action
DRAFT
Apr 2001
V04.03