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Section
Chapter
7. Specifications
Cabling Specifications
Table
Maximum cabling distances
Loop Type and Resistance
Key phone, EM/24
DSSl72
SLT
100 Ohms
OPX (Loop between the DBS and
the OPX Adaptor)
OPX (Loop between the OPX
Adaptor and a pushbutton SLT)
Doorphone (Loop between the
DBS and the Doorphone Adaptor)
Doorphone (Loop between the
Doorphone Adaptor and the
phone)
Voice
10 Ohms
40 Ohms
20 Ohms
10 Ohms
900 Ohms
(excluding end
impedance)
10 Ohms
40 Ohms
Cable
Gauge
22
24
26
22
24
26
Maximum Cabling
Length in Feet
(Distance from the
DBS)
779
490
619
388
244
22
3097
24
1948
26
1225
22
309
24
194
26
122
22
27877
24
17532
26
11025
22
309
I
24
I
26
122
22
1239
26
122
Manual Issued
7-13
Содержание DBS 40
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