Sentex Ovation S, Руководство по установке, Страница: 12 / 29

Rev B Doc. 6001072 Page 11 of 28
DC POWER
WIRE SIZE
DISTANCE AC POWER
WIRE SIZE
18 AWG 30' and under 18 AWG
18 AWG 30'-75' 14 AWG
14 AWG 75'-150' 12 AWG
12 AWG 150'-250' 10 AWG
10 AWG 250'-500' -----
Table 1. Single Entrance Ovation Cabling Power Wire Distance.
B. Line Interface Board Cabling
The following cabling must be run for a single entrance installation:
a. A 2 conductor shielded cable from the LIB to the 120 VAC outlet for the 12 VAC, 50 VA
transformer supplied by Sentex (or a 12 VDC power supply that you provide). See Table 2 for
the required wire size.
b. A 4 twisted pair cable between the connector boards of each LIB housing in the stack, as
shown in Figure 6 (applies only to installations with multiple LIB housings).
NOTE: Belden 8757 for unshielded installations and Belden 9504 for shielded installations (or
equivalent) is recommended.
Figure 6. Single Entrance LIB Cabling.
DC POWER
WIRE SIZE
DISTANCE AC POWER
WIRE SIZE
18 AWG 30' and under 16 AWG
18 AWG 30'-75' 12 AWG
14 AWG 75'-150' 10 AWG
12 AWG 150'-250' -----
10 AWG 250'-500' -----
Table 2. Single Entrance LIB Cabling Power Wire Distance.