2N NetStar Hardware manual - Manual (Page 21)

21
2.6 SWITCH card
The SWITCH card is an inseparable part of the basic module.
It can be supplied in two HW alternatives.
Switch X without the possibility of extension modules connection, standardly supplied
as a part of the Basic Module Lite version.
Switch with the possibility of the connection of up to 4 extension modules.
Both card versions are always equipped with 1 PRI interface and basic connection
field that is in charge of the connection of call in the entire system.
It is only used in the basic module and is always installed in the position with 5
as the HW address.
The set–up of the Jumpers on the board determines the
NT or TE port type
NT port set–up
For NT port the pins 1–3, 2–4, 5–7, 6–8 should be connected