Panasonic CPC-EX Manual De Usuario
Section 300-Installation
Chapter 7. Specifications
DBS-2.3/9.2-300
DBS Manual - Revised April 2000
7-13
Cabling Specifications
Table 7-11. Maximum cabling distances
Loop Type and Resistance
Resistance
Cable Gauge
(AWG)
(AWG)
Maximum Cabling
Length in Feet
(Distance from the
DBS)
Length in Feet
(Distance from the
DBS)
Key phone, EM/24
40 Ohms
22
1239
24
779
26
490
DSS/72 20
Ohms
22
619
24
388
26
244
SLT 100
Ohms
22
3097
24
1948
26
1225
OPX (Loop between the DBS and
the OPX Adaptor)
the OPX Adaptor)
10 Ohms
22
309
24
194
26
122
OPX (Loop between the OPX
Adaptor and a pushbutton SLT)
Adaptor and a pushbutton SLT)
900 Ohms
(excluding end
impedance)
22
27877
24
17532
26
11025
Doorphone (Loop between the
DBS and the Doorphone Adaptor)
DBS and the Doorphone Adaptor)
10 Ohms
22
309
24
194
26
122
Doorphone (Loop between the
Doorphone Adaptor and the Door-
phone)
Doorphone Adaptor and the Door-
phone)
40 Ohms
22
1239
24
779
26
490
Voice Announce Unit
10 Ohms
22
309
24
194
26
122