Alcatel-Lucent 7750 Configuration Manual page 498

Interfaces
of timeslots. Each member of the list can either be a single timeslot or a range of timeslots.
Values
Page 498
1 — 24 for DS-1 interfaces (the full range is auto-configured for ATM channel groups and
cannot be changed).
2 — 32 for E-1 interfaces (the 2 — 16,18 — 32 ranges are auto-configured for ATM
channel groups and cannot be changed).
7750 SR Interface Configuration Guide