Dc Powered System - Single Dc Power Supply In Slot F1 - No Voice Cards; Terminals On Dc Terminal Block - Zhone IMACS 8000 User Manual

Running Head
System Power and Ground Connections
The Table 2-2 describes the function of all the terminals on the DC Terminal Block.
DC Terminal Block
Connection
RGR
VNA (+ and -)
VNB (+ and -)
VA (+ and -)
VB (+ and -)
COM
The figures Figure 2-8 to Figure 2-12 show some examples of how to wire/strap the DC
Terminal Block for various common powering configurations.
Figure 2-8.DC Powered System - Single DC Power Supply in Slot F1 - No Voice Cards
2-14
Table 2-2. Terminals on DC Terminal Block
Connect external Ring Generator to this terminal only if 8000-RG cards are not
provided in the 8000 chassis and ringing voltage is required (e.g. using FXS
cards in the chassis).
Connect 48 VDC power feed to these terminals to:
(a) Power 8000-RG (ringing generator) in slots R1 and R2.
(b) Provide network power for cards needing -48 V such as; talk battery for
voice cards (FXS and FXO), signal battery to E&M cards, and sealing current
to OCUDP and ISDN cards.
Connect 48 VDC power feed to these terminals to:
(a) Power redundant 8000-RG (ringing generator) in slot R1 and R2.
(b) Provide redundant network power for cards needing -48 V such as; talk
battery for voice cards (FXS and FXO), signal battery to E&M cards, and
sealing current to OCUDP and ISDN cards.
Power connection for primary DC Power Supply in slot F1
Power connection for redundant DC Power Supply in slot F2
Common ground for all data cards
Terminal for building/chassis ground connection. This terminal is common
with the ground lug on the side of the chassis.
-48 V DC S uppl y
-
-48 V D C R eturn
+
P rotective E arth/C has s is G round
Model No.
System Installation
Function
T erminal
B lock
Reference Guide