Cabling Specifications; Table 7-11. Maximum Cabling Distances - Panasonic CPC-EX Installation Manual

Section 300-Installation

Cabling Specifications

Table 7-11. Maximum cabling distances

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