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Tally Dascom 2820 - Interface specifications; Parallel interface

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Options and accessories User Guide
Interface specifications
Parallel interface
Type of data transmission
Transmission rate
Signal status
Connection cable
Voltage supply of external devices on
pin 18
Interface connections
bidirectional
8-bit parallel interface (Centronics compatible) IEEE-1284;
Nibble mode
Max. 30 KHz
Low: 0.0 V to +0.4 V
High: +2.4 V to +5.0 V
Material: AWG 28 at least
Length: up to 2.0 m
Twisted-pair cable with double-shield,
acc. IEEE Std 1284 – 1294
U = +5 V ±10%
I = 0.5 A
max
Printer side:Amphenol 57-40360, 36-pin (or compatible)
Cable side:Amphenol 57-30360, 25-pin (or compatible)
USB interface
Conformity
Speed
Connector
USB 2.0 I/O full speed
Conforms to the Universal Serial Bus 2.0 Specifications
Full Speed mode at 12 Mbps
“B” type USB connector
USB A Host With this additional connectivity it is possible to improve the
serviceability for example to load the firmware or to upload or
download Configuration easily by an USB stick. Refer to section USB
host interface for further information.
Ethernet interface
Transmission rate
Supported protocoles
Network print protocoles
IP address designation
Connection cable
Network print management
protocoles
Capacity of data buffer
Onboard 10/100BaseT Ethernet-RJ45 with 2 LEDs
100 Mbps / Full Duplex
TCP/IP
LPR/LPD, RAW Port
DHCP, BootP and manually over the control panel
RJ45; Cat 5e, 6
HTTP, HTML, SNMP
8 MB
126

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