13
LOBE ACCESS UNIT
size or manufacturer “estimates.” In most cases, Type
1 should not exceed 269 feet (82 m), and Type 3
should not exceed 98.4 feet (30 m) at 4 MB (MAU to
MAIN port).
3.4 Cable Pinouts
4-Position Data
Connection
(IBM P/N 8310574)
MAU
DB9 Male
DB9 Female
DB9 Male
Lobe Access Unit/Main
Lobe Access
Unit/Sub
Workstation
Black
Orange
Green
Red
5
1
5
1
5
1
9
6
9
6
9
6
