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S e c t i o n 4 - I n s t a l l a t i o n
73
Figure 4-12 ISDN RJ 45 Socket wiring – 206 system
Socket & connector supplied with ISDN card
to pin 5 (green)
to pin 4 (red)
to pin 3 (black)
to pin 6 (yellow)
ISDN connector
Rx+
Rx-
Tx+
Tx-
pin 1
pin 8
Figure 4-13 ISDN RJ 45 Socket wiring – 208/212 system
A connector is supplied with the ISDN card for the 208 and 212 systems. Figure 4-12 shows the
correct wiring for ISDN on the 206 system, Figure 4-13 shows the correct ISDN wiring for the
208/212 systems. When the system is powered up ISDN cards are automatically detected and the
system runs a test to verify that the ISDN line(s) are operational. If either ISDN S bus is not
connected or temporarily down then the tests will be repeated at 5 minute intervals until the channels
are available, during this time attempts to seize an external line routed over an ISDN exchange line
will be blocked with busy tone. The system may be connected in parallel with other ISDN devices
with a line in point to multipoint configuration. If a B channel is busy on another ISDN device
connected to the ISDN line then the system will show the line as busy and stop calls being routed
out on that line.
The ISDN card will generally function directly without programming, though to take advantage of
the extra services offered by ISDN some programming is recommended. Programming details are
found in the ISDN Programming section on page 51. Use of the PC program with theV24 option
card is recommended to simplify the process.
If you wish outgoing calls to be made on the ISDN network in preference to any PSTN lines then
program the feature ‘ISDN first’. The code to be entered at the master extension is *8 201 #.
The end of line 100
Ω
terminating resistors must be fitted to the last device connected to the ISDN
S
0
bus. This also applies if the device is the only equipment connected, or if it is the only device
connected. The ISDN card contains two links, J1 and J2 which will put the termination in place if
fitted.
Fax /Voice Card
This option card is used to store the various voices messages used in Auto Answer features and
Security alarm applications. The card also has a fax detector, which is used to automatically route fax
calls to the fax machine. The card plugs into the slot shown in Figure 4-10. This card is automatically
detected when the telephone system powers up.
The 206 and 208 systems use a 1 channel voice card, while the 212 system uses a 2 voice channel
card. 212 system can handle two simultaneous exchange line calls.
V24 / RS-232C Serial Data Interface
The optional V24/RS-232C option board is mounted on dedicated MBU terminals provided for this
purpose. (Refer to Figure 4-10 on page 71 for location details). The board is connected using the
Important!
S k t
to pin 6 (yellow)
to pin 3 (black)
to pin 4 (red)
to pin 5 (green)
ISDN connector
Rx-
Rx+
Tx-
Tx+
pin 1
pin 8