Cisco Systems UBR-3X10 manual Cisco uBR 3x10 RF Switch-MCX Connection Locations

Chapter 4 Cabling the RF Switch With the Cisco uBR10012 CMTS Cable Interface Line Cards

Connecting the RF Cables (MC16x, MC28C Line Cards)

Tip See Table 4-2 on page 4-13and Table 4-1 on page 4-11for cable interface and CMTS connection locations. Note that the gray and brown cables have F-connectors instead of MCX connectors. These cables are used to connect to the upconverter (UPx).

Step 3 Install the cables in the CMTS header block in the order that they were mapped.

a.Push the MCX connector into the hole in the header block until you can feel it snap into place.

b.Gently wiggle the connector to make sure that the connection is secure.

Step 4 Repeat Step 1through Step 3 for the other line cards.

Step 5 Repeat Step 1 through Step 3 for the PROTECT (P1A–P1H) header block.

Step 6 Gently pull on the cables to be sure that they are firmly seated in the header blocks.

Caution To ensure proper installation and avoid poor connections, be sure that the cables are not positioned at too acute an angle.

Step 7 Use a flat-blade screwdriver to tighten the captive installation screws at both the top and the bottom of the header block to prevent accidental disconnection.

Caution Do not overtighten the captive screws. We recommend that you tighten the screws to 5 to 7 inch-pounds (0.5647 to 0.7909 Nm).

Figure 4-10 Cisco uBR 3x10 RF Switch—MCX Connection Locations

Red	Yellow
A	H
White	Violet
B	I
Blue	J
C
Green	K
D
E	L

Gray

F M

G N

Cisco uBR-MC16x

Red	Yellow
A	H
White	Violet
B	I
Blue	Orange
C	J
Green	Black

DK

EL

Gray Brown

F M

G N

Cisco uBR-MC28C

	P2A-P2H
P1A-P1H
2A-2H 4A-4H 6A-6H 8A-8H		7H-7A 5H-5A 3H-3A 1H-1A
1A-1H 3A-3H 5A-5H 7A-7H	8H-8A 6H-6A 4H-4A 2H-2A
Working CMTS	Protect	103304

Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide

4-16 OL-1984-06