Aastra OpenCom 510 User Manual page 49

Interfaces and Connectible Terminals
base station must be connected to the first U
cable (system telephone cable).
Pin Assignment
1 2 3 4 5 6 7 8
U interface pin assignment
pn
The following table explains the U
Pin Number
1
2
3
4
5
6
7
8
*) If the DIP switches are set accordingly, the conductors of the adjacent U
will be connected here; use only the first U
Setting DIP Switches
1. Remove the interface card by following the instructions in Installing Interface
Cards starting on page 31.
2. The DIP switches are protected by a plastic foil. Use a pointed tool such as a
screwdriver to slide the DIP switches to the right (see arrow in the illustration
Location of the DIP switches on the MS+UPN2-8 interface card on page 48).
port of the pair by means of a 1:1
pn
interface pin assignment.
pn
Assignment
Not used
Not used
U a *)
pn
U a
pn
U b
pn
U b *)
pn
Not used
Not used
port in this configuration.
pn
U Ports
pn
port
pn
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