Chapter 7: The Digi Modem Card; Fitting The Digi -Modem Card To The End Station - Pyronix PCX-256 Installation Manual

The Digi-Modem card is design to slot into a SIMM socket (Communication card) on the PCX 256
and is specified to operate with BT lines.
G1
Q3
Note: Attempts to use the device in any other host will invalidate the safety certification, could cause
damage to the equipment, and may be hazardous.
The card must be installed and used as described in these installation instructions.
All connections to the end station are made automatically. Terminals for connection to the PSTN
are located on the end station PCB.
When the unit is used on a shared line, the total REN loading of the line must not exceed 2.5. The
REN value of any piece of equipment which is not marked should be assumed to be 1.
The REN value of the DIGI MODEM CARD is 1.
7 . 1 F i t t i n g t h e D i g i - M o d e m C a r d t o t h e E n d S t a t i o n
Before slotting the Digi-Modem card into the SIMM slot on the end station, all power must be
disconnected.
The card must be slotted into the correct socket (labelled communication card) on the end station.
This is the upper socket.
Should it be necessary to remove the unit, the reverse procedure should be performed, ensuring
that all power is removed before doing so.
RINS869-8
C H A P T E R 7 : T H E D I G I M O D E M C A R D
PCX-COM9600
© Pyronix Ltd
K1
UK, 2003
R22
D7
Q2
D2
R15
D4
C8 C15
R5 R11
Towards TOP
edge of PCB
P C X 2 5 6 I N S T A L L A T I O N M A N U A L
u1
XC1
X1
U2
Insert card at
slight angle
Socket for
Digi Modem
Socket for
MSX Card
C4
U1
C3
ENSURE THAT CORRECT
SOCKET IS USED
- They are not interchangeable
Ease to
vertical
position
Note: Card snaps into place
and is retained by springs
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