Speci
fi
cations
Table 2: Interface characteristics
Characteristic
Performance requirements
Reference information
Keyboard
17 buttons with green LED backlight, 6 Fault
indicators with Red / Green backlight.
Display
LCD with 2 line x 40 characters with
backlight, 153 x 15 mm active area.
Ethernet functionality
1000base-T, 100BASE-TX and 10BASE-T
Compliant with IEEE 802.3-2000 and ANSI
X3.263-1995 standards
Ethernet connector
8P8C connector supporting 10/100 BaseT
The 8P8C (also known as RJ45) connector
has built in LEDs. The Green LED indicates
an active connection. The Yellow LED
indicates speed. ON = 100, OFF = 10.
Wiring follows TIA/EIA-568-B T568A
standard Ethernet pin assignments.
GPI
General Purpose Interface for uses such as
setting presets or driving alarms. The 15
pin connection has 1 con
fi
gurable input and
2 con
fi
gurable outputs. The 9 pin carries
the same signal as the 15 pin plus three
inputs used to select presets and one more
con
fi
gurable output.
Logical functions
The function of some of the input and outputs
may be set from the user interface.
Ground closure
Input signaling
TTL thresholds of 0.8 V low and 2.0 V high,
5 V max input, –0.5 V min input.
Pull low to assert.
Has internal 10 k
Ω
pull-up to +5 V on each
input.
Input timing
Inputs must be asserted and stable for at
least 60 ms to be recognized reliably. Inputs
that are stable for 40 ms or less will not be
recognized.
Output characteristics
Three open collector outputs
Has internal 10 k
Ω
pull-up to +5 V.
Max current allowed is 100 mA.
On resistance is approximately 4 Ohms
Maximum output current
250 mA
On resistance is approximately 4 Ohms
Output duration
Signal alarms asserted as long as the
error condition exists. Timer based outputs
asserted for the 1 second that the selected
time counter matches the user de
fi
ned time.
USB
Type
Host
Speed
USB 1.0 and 2.0 full-speed (12 Mb/s)
2
SPG8000 Speci
fi
cations and Performance Veri
fi
cation
