Confidential
EPSON
TITLE
SHEET
REVISION
NO.
SHEET
NEXT
A
9
10
TM-U220A
Specification
(For Argentina Fiscal)
2. CONFIGURATION
2.1 Interfaces
Host communications: RS232-compatible RJ45, or
USB rev1.1 Full-speed compatible mini-USB type B
Fiscal communications: RS232-compatible DSUB-9 pin female serial interface
2.1.1 Host interfaces
2.1.1.1 RS232 compatible RJ45
2.1.1.1.1 Specifications
Format: RS232C-compatible
Data transmission:
Serial
Synchronization: Asynchronous
Handshaking:
DTR/DSR, XON/XOFF, or no flow control (software configurable)
Signal levels:
MARK = -3 to -15 V: Logic "1"/OFF
SPACE = +3 to +15 V: Logic "0"/ON
Transmission speeds: 1200-115200 bps (software configurable)
Data word lengths:
7 or 8 bits (software configurable)
Parity settings:
Odd, even, or none (software configurable)
Stop bits:
1
Connector (UB side): RJ45 (EIA/TIA-561-compatible)
Table 2.1.1 Interface Terminal Assignments and Signal Functions
Pin
number
Signal
name
Signal
direction
Function
1
DSR
Input
Data set ready
2 -
-
Not
connected
3
DTR
Output
Data terminal ready
4 SG
-
Signal
ground
5 RXD
Input
Receive
data
6 TXD
Output
Transmit
data
2.1.1.2 USB interface
2.1.1.2.1 Specifications
USB specification:
USB Rev.1.1 Full-speed compatible
Speed:
12 Mbps (Low speed is not supported.)
Type:
USB bulk transfers
USB packet size:
USB bulk IN 128 bytes (64 bytes
×
2FIFO)
USB bulk OUT 128 bytes (64 bytes
×
2FIFO)
Connector (UB side):
EPSON 2119599 connector (MNC20-5K5L10)