Zebra DS457 User Manual

8 - 16 DS457 Fixed Mount Imager Integration Guide
Multipacket Option
Parameter # 334 (SSI # F0h, 4Eh)
This parameter controls ACK/NAK handshaking for multi-packet transmissions.
• Multi-Packet Option 1: The host sends an ACK / NAK for each data packet during a multi-packet
transmission.
• Multi-Packet Option 2: The imager sends data packets continuously, with no ACK/NAK handshaking to
pace the transmission. The host, if overrun, can use hardware handshaking to temporarily delay imager
transmissions. At the end of transmission, the imager waits for a CMD_ACK or CMD_NAK.
• Multi-Packet Option 3: Option 3 is the same as option 2 with the addition of a programmable interpacket
delay.
*Multipacket Option 1
(0)
Multipacket Option 2
(1)
Multipacket Option 3
(2)

Zebra DS457 Specifications

General

Type	Fixed bar code reader
Wavelength	655 nm
Sensor type	-
Scanner type	1D/2D
Optical sensor resolution	752 pixels
Standard interfaces	USB
Connectivity technology	Wired
Input voltage	5 V
Power consumption	450 mA
Safety	ETL, VDE, CETL, EN60950, Ctick, VCCI
Certification	FCC, RoHS
Product color	Black
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	-20 - 50 °C
Cables included	USB, VGA
Harmonized System (HS) code	84716070

Weight and Dimensions

Depth	58.4 mm
Width	62 mm
Height	29.2 mm
Weight	111 g