Chapter 14: The Digi Modem Card; Fitting The Digi -Modem Card To The End Station - Pyronix 256 System Manual

P C X S M S A N D P C X 2 5 6 S Y S T E M M A N U A L
C H A P T E R 1 4 : T H E D I G I M O D E M C A R D
The Digi-Modem card is design to slot into a SIMM socket (Communication card) on either the PCX 26/SMS
or the PCX 256.
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.
1 4 . 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.
Socket for
Digi Modem
Should it be necessary to remove the unit, the reverse procedure should be performed, ensuring that all
power is removed before doing so.
Page: 110
PCX-COM9600
© Pyronix Ltd
K1
UK, 2003
R22
D7
Q2
D2
R15
D4
C8 C15
R5 R11
Towards TOP
edge of PCB
Socket for
MSX Card
u1
XC1
X1
U2
ENSURE THAT CORRECT
SOCKET IS USED
- They are
Insert card at
slight angle
Ease to
vertical
position
Note: Card snaps into place
and is retained by springs
C4
U1
C3
not interchangeable
RINS871-3