Powered Serial Port Jumper Settings - NCR RealPOS 70XRT User Manual

Powered Serial Port Jumper Settings

The four serial ports have jumper options for either Ring Indicator (RI), fused +12 V,
or fused +5 V on pin 9. When set to powered each port is capable of supporting up to
1.5 A (Max.) and is protected with self‐healing poly‐fuse. The default setting for all
four ports is Ring Indicator.
COM Port
Self-Healing
Poly-Fuses
Note: The +24 V printer and cash drawer circuits are protected by a replaceable fuse.
RI
300-15
12V
5V
RI
300-15
12V
5V
RI
300-15
12V
5V
RI
300-15
12V
5V
Chapter 1: Overview 1-15
F4, 3 A, 125 V
(Printer & Cash Drawer +24V)
Littelfuse P/N 0454003
26226