Wiring Diagrams
7-6 11/06 FaxCentre 2121/2121L
List of Connectors
Printer: Connections to the Printer
Table 1: List of Connectors
Connector Location ref. Number of pins Male/Female Type
Printer P4201 26 Male Straight
CIS P4370 12 Female Elbow, top contact
Control panel P4100 24 Female Elbow, top
contact
ADF Motor P4301 5 Female Elbow
ECP P4630 36 External, Centronics
type
USB device P4901 4 External, USB type B
LAN P8800 8 External, RJ45
STN P4420 6 External, RJ11
Table 2: Connections to the Printer
Pin Signal Input/Output Use
1-6-7-8 GND - Ground
2 P24V - 4V Supply
3 GND - Ground
4 - - Not connected
5 RESETIMP O Printer reset
9 HSYNC I Horizontal sync (line)
10 linked to 23 - -
11 READY I Printer ready (not used)
12 VSYNC I Vertical sync (page)
13 ETBSY I Engine status busy
14 RXIMP I Printer status (serial data transmitted by printer)
15 TXIMP O CPU command (serial data
transmitted to printer)
16 CBSY - Controller status busy
18 SCLKIMP O Serial link clock printer sync
19 VIDEO O Printer video
17-20-21 GND O Ground
22-25 - - Not connected
23 linked to 10 -
24 P5V - 5 V supply
26 P5V - 5 V supply
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