Epson TM-T20II, Technical Reference Manual

Page: 58 / 140

58
Connecting the Cash Drawer
Required specifications of cash drawers
Spec i f i ca ti o n s of drawers d i ffer depe n d ing o n makers or models. Whe n yo u u se a drawer o t her
t ha n spec i f i ed, make s u re it s spec i f i ca ti o n mee t s t he follow ing co n d iti o n s.
O t herw i se, dev i ces may be dama g ed.
• The load, s u ch as a drawer k i ck-o ut sole n o i d, m u s t be co nn ec t ed be t wee n p in s 4 a n d 2 or p in s
4 a n d 5 of t he DK co nn ec t or.
• Whe n t he drawer ope n /close s ign al i s u sed, a sw it ch m u s t be prov i ded be t wee n DK co nn ec t or
p in s 3 a n d 6.
• The res i s t a n ce of t he load, s u ch as a drawer k i ck-o ut sole n o i d, m u s t be 24  or more or t he
in p ut c u rre nt m u s t be 1A or less.
• Be s u re t o u se t he 24V power o ut p ut o n drawer-k i ck o ut co nn ec t or p in 4 for dr i v ing t he eq ui p-
me nt .

Do not connect both the optional external buzzer and the cash drawer to the printer at
the same time by using a branched connector.

When the optional external buzzer is enabled with the memory switch (see "Setting the
Memory Switches/Receipt Enhancement" on page 46 ), a cash drawer cannot be used.
Be sure to disable it when you use a cash drawer.

Two driver transistors cannot be energized simultaneously.

Leave intervals longer than 4 times the drawer driving pulse when sending it
continuously.