elmeg C46e, Description And Installation

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2.4.2 ”Point-to-point”
This type of connection allows a distance of up to 1000 m between one ISDN
terminal and the PABX. This setting is made during programming. The termi-
nating resistors must be installed in the ISDN jack. The wire diameter for the
example used here is 0.6 mm.
2.4.3 Connecting the ISDN terminals to the internal ISDN
connection
Figure 22 shows the interfacing to RJ 45 jacks. ´The interfacing RJ 45- 8 jacks
and the designations used for these. The terminating resistors to RJ 45 jacks
shown in Figure 23. The ”point-to-point” connection corresponds to the bus
interface (RJ 45) but with only one ISDN jack having terminating resistors. Figure
24 illustrates the connection assignment for RJ 45 4...8 jacks.
1 2 3 4 5 6 7 8
m ax. 1 ,0 0 0 m
ISDN jac k w ith
term inating
resisto rs
PAB X
ISDN telep ho ne
Fig. 21: “Point-to-point” connection
In
s
tallat
ion
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