Nortel Meridian SL-100 Reference Manual page 24

1-2 Introduction
The Meridian modular telephone is one of three different supported
versions. First sets have ordering codes beginning with NTZK. Models
developed from 1995 to 1997 have ordering codes beginning with NT2K.
The latest version begins with NT9K. These sets provide a new analog
terminal adapter (ATA) and MCA powering scheme. You can determine the
version of your set easily by looking at the first four letters in the upper
left-hand corner of the model identification label on the bottom of the set. In
addition, the two jacks face in the same direction on the NT2K and NT9K
sets, but face opposite directions on the NTZK sets.
There are some hardware differences between the three versions. When
appropriate, the differences are noted in this document.
555-4001-114 Standard 10.02 November 1999
M2616—a high performance multiline telephone with 15 programmable
feature keys and a PDN key and an integrated handsfree unit
M2616CT—a multiline 900Mhz cordless telephone with 14
programmable feature keys on the base and six keys on the handset
which map to the six bottom programmable keys on the base. A primary
directory number (PDN) key, program key and handsfree key are
standard on the set.