Nortel Networks Circuit Card - Manual (Page 829)

NTRB21 DTI/PRI/DCH TMDI card Page 829 of 906
Circuit Card Description and Installation
Figure 177
NTRB21 TMDI card faceplate
553-CSE0007
OOS
ACT
RED
YEL
LBK
CC
DCH
TMDI
Monitor Port
RS232
MAINT
Rx
Tx