Tektronix SPG300, Руководство по обслуживанию, Страница: 29 / 176

Specifications
SPG600 & SPG300 Sync Pulse Generators Service Manual
1-7
Table 1-5: Analog audio outputs
Characteristic Performance requirement Reference information
Output connector type XLR
Number of channels 2 1+2/RIGHT and 3+4/LEFT
Output impedance 12
Ω
Audio parameters
Frequency Silence to 20 kHz 31 discrete settings
Level -48 dBu to 12 dBu 1 dB resolution
Click 1 s, 2 s, 3 s, 4 s, and Off
Table 1-6: GPI (general purpose interface)
Characteristic Performance requirement Reference information
Output connector type D-sub, 9 pin
Outputs Pin 1: Error output (go to low when an error
occurs)
Pin 9: GND
Output level < 0.4 V Measured at 100 mA sink or maximum 4
Ω
Inputs Pin 3: Input 1
Pin 4: Input 2
Pin 5: Input 3
Pin 6: GND
Active low input
Input level TTL compatible Inputs are pulled up with 10 k
Ω
Table 1-7: SNMP error report
Characteristic Performance requirement Reference information
Protocol SNMP v1, v2c
Alarm The same alarm as the GPI will be reported.
Status Serial number, firmware and hardware
version, hardware configuration/option, etc.