HP 61010A Owner's Manual page 12

Table 1-1. Specifications (continued)
Factory Defaults:
Digital input
Label = DIG.IN.01 (DIG.IN.02 for 2nd instrument)
Base = decimal
Complement = 2's
Logic sense = positive
Length of bits = 16
Start bit = 0
Threshold = 1.36 V
Handshake = disabled
Update = auto
Digital output
Label = DIG.OUT.Ol (DIG.OUT.02 for
2nd instrument)
Output value = 0
Base ~ decimal
Logic sense ~ positive
Length of bits = 16
Start bit = 0
Driver = TTL
Handshake = disabled
Output - disabled
1-6 Product Description