Zebra Technologies 160S - Manual (Page 65)

Signal Descriptions
The following chart provides a description of each of the pins in the
parallel connector. A standard parallel data cable will provide the re-
quired interconnection between the computer and the printer.
Parallel Connector Pin Assignments
Pin No. Description
1 The nStrobe printer input has internal 3.3 kW pull-up resistors to 5 V (I
OL
= 1.5 mA) and is
designed to receive a signal driven open collector V
OL
<= 0.8 V. This pin is a signal from
the host computer. The nStrobe input is debounced on a LOW going edge to require an ac-
tive width greater than 0.5 µ s before data is latched.
2 - 9 Data inputs have TTL input characteristics with internal 3.3 kW pullups and represent 1 TTL
unit load or less. The Data inputs are positive logic with a HIGH voltage level corresponding
to a logic 1. Pin 2 through Pin 9 = D0 through D7 respectively.
10 The nAck output is an active LOW pulse used to indicate termination. nAck is a driven open
collector with a 3.3 kW internal pull-up. The output sinks 7 mA to a V
OL
<= 0.4 V.
11 The Busy output is active HIGH whenever the printer cannot accept data due to any normal
or abnormal condition, including buffer overflow, head open, over temperature, and media er-
ror conditions. Busy is a driven open collector with a 3.3 kW internal pull-up. The output
sinks 7 mA to a V
OL
<= 0.4 V.
12 The PError signal is active HIGH whenever the printer is out of media or ribbon.
13 The Select signal function is determined by an additional configuration option which be-
comes active when the port is present. In the default condition, Select is active HIGH when-
ever the parallel port is powered up and the parallel port is enabled. In the non-default
condition, Select will go active LOW whenever the printer is printing.
14 nAutoFd (not connected)
15 Not defined
16 Logic Gnd
17 FRAME GROUND is at the same potential as Logic Gnd (pin 16).
18 FUSED 5 V - 1 A maximum.
19 - 30 SIGNAL GROUNDS are the Logic Grounds and Returns for all input and output signals.
31 - 35 NOT USED - These leads should be left unconnected.
36 NSelectIn (not connected)
5-6 Zebra S-Series User’s Guide
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