Ons 15454 Etsi Power And Ground; Ons 15454 Ansi Alarm, Timing, Lan, And Craft Pin Connections; Figure 13-40 Ground Posts On The Ons 15454 Ansi Backplane - Cisco ONS 15454 DWDM Installation And Operation Manual

13.12.2 ONS 15454 ETSI Power and Ground

To install redundant power feeds, use four power cables and one ground cable. For a single power feed,
only two power cables (#10 AWG, 2.588 mm² [0.1018 inch], copper conductor, 194°F [90°C]) and one
ground cable (#6 AWG, 4.115 mm² [0.162 inch]) are required. Use a conductor with low impedance to
ensure circuit overcurrent protection. However, the conductor must have the capability to safely conduct
any faulty current that might be imposed.
If you are installing power on a Release 3.0 ONS 15454 ANSI shelf assembly (15454-SA-NEBS3E,
Note
15454-SA-NEBS3, and 15454-SA-R1), the #12 to #14 AWG (2.053 to 1.628 mm²) power cable and #14
AWG (1.628 mm²) ground cable are required.
The existing ground post is a #10-32 bolt. The nut provided for a field connection is also a #10 AWG
(2.588 mm² [0.1018 inch]), with an integral lock washer. The lug must be a dual-hole type and rated to
accept the #6 AWG (4.115 mm² [0.162 inch]) cable. Two posts are provided on the ONS 15454 ANSI to
accommodate the dual-hole lug.

Figure 13-40 Ground Posts on the ONS 15454 ANSI Backplane

13.12.2 ONS 15454 ETSI Power and Ground
The ONS 15454 ETSI has redundant –48 VDC power connectors on the MIC-A/P and MIC-C/T/P
faceplates.
To install redundant power feeds, use the two power cables shipped with the ONS 15454 ETSI and one
ground cable.
For details, see the
FMEC" section on page
Only use the power cables shipped with the ONS 15454 ETSI.
Caution
13.13 ONS 15454 ANSI Alarm, Timing, LAN, and Craft Pin
Connections
Pin connections are provided on the ONS 15454 ANSI backplane. For information about
ONS 15454 ETSI connections, see the
section on page
Cisco ONS 15454 DWDM Installation and Operations Guide, R4.7
13-44
FRAME GROUND
"14.3.1 MIC-A/P FMEC" section on page 14-21
14-24.
13-30.
Figure 13-40 shows the location of the ground posts.
"13.8 ONS 15454 ETSI Front Mount Electrical Connection"
Chapter 13 Shelf Hardware Reference
and the "14.3.2 MIC-C/T/P
September 2004