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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 1 Hardware Installation
EIA Installation
Figure 1-14 An SMB EIA backplane
The SMB EIA has 84 transmit and 84 receive connectors on each side of the ONS 15454 for a total of
168 SMB connectors (84 circuits).
The EIA side marked “A” hosts 84 SMB connectors in six columns of 14 connectors. The “A” side
columns are numbered 1 – 6 and correspond to Slots 1 – 6 on the shelf assembly. The EIA side marked
“B” hosts an additional 84 SMB connectors in six columns of 14 connectors. The “B” side columns are
numbered 12 – 17 and correspond to Slots 12 – 17 on the shelf assembly. The connector rows are
numbered 1 – 14 and correspond to the 14 ports on a DS-1 card.
For DS-3 or EC-1, the EIA supports 72 transmit and 72 receive connectors, for a total of 144 SMB
connectors (72 circuits). If you use a DS-3 or EC-1 card, only Ports 1 – 12 are active. If you use a
DS3XM-6 card, only Ports 1 – 6 are active. The SMB connector pairs are marked “Tx” and “Rx” to
identify transmit and receive cables for each port. If you use SMB connectors, you can install DS-1,
DS-3, or EC-1 cards in any multispeed slot.
1.6.4 AMP Champ EIA
The ONS 15454 AMP Champ EIA supports 64-pin (32 pair) AMP Champ connectors for each slot on
both sides of the shelf assembly where the EIA is installed. Cisco AMP Champ connectors are female
AMP # 552246-1 with AMP # 552562-2 bail locks. Each AMP Champ connector supports 14 DS-1 ports.
You can use AMP Champ EIAs with DS-1 cards only. Figure 1-15 shows the ONS 15454 with
pre-installed AMP Champ EIAs and the corresponding sheet metal cover and screw locations for the
EIA.
To install AMP Champ connector DS-1 cables, see the “AMP Champ Connector Installation” section on
page 1-41.
For information about attaching ferrites to AMP Champ connectors, see the “Ferrite Installation” section
on page 1-61.
B
A
Reserved
for DS-1s
12x DS-3s
32101
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TX RX TX RX TX RX TX RX TX RX TX RX
TX RX TX RX TX RX TX RX TX RX TX RX
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654321
TX RX TX RX TX RX TX RX TX RX TX RX
TX RX TX RX TX RX TX RX TX RX TX RX
SMB backplane
connectors
Tie wrap posts