IBM System/360 Field Engineering Manual page 96

Lead Byte
Home Address
41
Bytes (5 + 2) Bytes
18
Bytes
Variable Area
21 Bytes Min
of Good Doto
Ones
(9 + 2) Bytes
VFO Area - 5 Bytes
Zeros Zeros Zeros
RO Dato
Field
Variable
Length
18 (1+2) To
Bytes Full Track
•
Byt5
RO Record
Byte
Ones
Address Mark Area
2 Bytes
Ones Ones
Bit Ring
Sync:
Byte
5 Bits Missing 5 Bits Missing
4 Bits Zeros
3
Bits Ones
T
Bit Zero Clock Pulses Clock Pulses
Count Field
Variable Variable
Length Length
18
0-255,
18
(3625 + 2)
(9 + 2) Bytes Bytes +2 Bytes
Bytes
Bytes Max
Normal Record