Specifications

3-14
Reference Guide
Model No.
Running Head
System Power and Ground Connections System Installation
Figure 3-8. D/C Terminal Block on Front-Loading Chassis
with Power Supplies on the Side in a D/C Environment
Note:
Optional Telecom Signaling Ground - It may be required when the -48 VDC source
output is not referenced ground or when the system is AC powered. It is only needed
for the proper operation of the Telecom Ground Start and E&M signlaing circuits.
T 5A
250V
IEC
Fuse
5A SB
250V
UL/CSA
100-200V
~
3A, 50 / 60 Hz
CAUTION:
For continued
protection against fire,
replace only with the same
type and ratings of fuse
Telephone
Equipment
Class 2 Power Source
U
L
®
LISTED 9K909
®
LR 77063
Model:
IMACS/600
24/48V 5A
+
-
+
-
+
-
R
G
R
C
O
M
V
N
V
B
V
A
Optional Telecom Signaling Ground
-
+
-48 VDC Supply
-48 VDC Return
48 VDC Source
Protective Earth/Chassis Ground
Terminal Block