Nortel 1000 Installation And Commissioning Manual page 456

Page 456 of 466
Table 64
PFTU connections (Part 3 of 3)
Unit
P
F
T
5
NN43041-310 Standard 01.11
Installing and cross-connecting an external alarm from a PFTU
Pair Color
21T V-BL
21R BL-V
22T V-O
22R O-V
23T V-G
23R G-V
24T V-BR
24R BR-V
October 2008
Normal mode
Makes with 22T and
22R
Makes with 21T and
21R
Makes with 24T and
24R
Makes with 23T and
23R
Failure mode
Opens 22T and 22R
Makes with 23T and 23R
Open
Opens 24T and 24R
Makes with 21T and 21R
Open