OSI PICS Manual

ISO 8073 for OSI/TS

Tandem OSI PICS Manual–135046

5-19

D.13 User Data in Issued TPDUs

D.13.1 Class 1 (C1::)

D.13.2 Class 2 (C2::)

D.13.3 Class 3 (C3::)

D.13.4 Class 4 (C4 or C4L::)

D.14 User Data in Received TPDUs

For classes 1 to 4, if it is possible to initiate a CR TPDU, then it shall be possible to

receive the following.

Index User Data References Status Support

D1ICR Can user data of up to 32 octets be issued in a CR

with preferred class 1

13.3.5 O Yes

D1ICC Can user data of up to 32 octets be issued in a CC 13.4.5 O Yes

D1IDR Can user data of up to 64 octets be issued in a DR 13.5.5 O Yes

Index User Data References Status Support

D2ICR Can user data of up to 32 octets be issued in a CR

with preferred class 2

13.3.5 O Yes

D2ICC Can user data of up to 32 octets be issued in a CC 13.4.5 O Yes

D2IDR Can user data of up to 64 octets be issued in a DR 13.5.5 O Yes

Index User Data References Status Support

D3ICR Can user data of up to 32 octets be issued in a CR

with preferred class 3

13.3.5 O Yes

D3ICC Can user data of up to 32 octets be issued in a CC 13.4.5 O Yes

D3IDR Can user data of up to 64 octets be issued in a DR 13.5.5 O Yes

Index User Data References Status Support

D4ICR Can user data of up to 32 octets be issued in a CR

with preferred class 4

13.3.5 O Yes

D4ICC Can user data of up to 32 octets be issued in a CC 13.4.5 O Yes

D4IDR Can user data of up to 64 octets be issued in a DR 13.5.5 O Yes

Index TPDU User Data References

DRCC 32 octets of user data in a CC TPDU 13.4.5

DRDR 64 octets of user data in a DR TPDU 13.5.5