Understanding the PCM30 line drawer 1-3
PCM30 Line Drawer
Maintenance Guide BCS33 and up
Figure 1-1xxx
Provision of exchange lines from a host LCM
Loop calling
Disconnect clear
Earth calling
Host LCM
with PCM30
line drawer
DMS-100
PCM30 link
(2Mbps)
DC5A calling
DC5A calling
PLGC
N
E
T
W
O
R
K
Analog exchange
lines
PBX
PBX
PBX
PBX
Loop calling
CTE
(Type 1 MEL)