Philips ErgoLine D310, Руководство пользователя, Страница: 80 / 88

ErgoLine D310/320
Customer Engineer Manual
Page 5-6
PNT1 (for use with 4-wire interface)
The ErgoLine D310 and D320 can be connected to the Switch via a Private
Network Termination (PNT1).
The EAZ of the ErgoLine D310/D320 should be adjusted as if the terminal was
connected to an S0-bus.
The PNT1 is equipped with two eight way modular sockets for the connection of
two S
0
ErgoLine terminals. On both jacks the corresponding pins 3, 4, 5 and 6 are
interconnected: 3 to 3, 4 to 4, etc.
Pin Outs
Pin Signal
1 n/c
2 n/c
3 R
(power +)
4 Tr
(power -)
5 Transmit -
(power -)
6 Receive -
(power +)
7 n/c
8 n/c
S
0
Interface
This interface is the standard SOPHO iS3000 S
0
interface.
To identify the terminal at the S
0
-bus see the section entitled Endgerät Auswahl
Ziffer (EAZ) below.
U
PN
interface
The ErgoLine D310 and D320 can be connected to the switch via the DLX-U U
PN
interface. This is a two wire digital interface which uses ping-pong signalling. (Do
not mistake this interface with the echo-cancelling proprietary Philips U-interface).
This interface is capable of supporting the connection of one terminal only.
Normally, the DLX-U U
PN
board should be projected in 1B mode for D310/D320
terminals.
The D310 and D320 terminal may also replace a D340 terminal that is connected
to a 2B+D mode projected DLX-U board. Remember that 2B+D mode is required
for the D340 when it uses both the voice and the data port. When a D310 or D320
terminal is connected to the DLX-U board in 2B+D mode only one B-channel is
used per port, while the other B-channel is left unused.