Cisco Systems 6100 installation manual Installing the DS3 Subtend Module

78-5481-02 09/15/98 Installation - Subtended Network 8

8.2.3 Installing the DS3 Subtend Module

The DS3 NI module should be installed in slot 10 of the host 6100 before the ATU-Cs are installed in the subtended node 6100. The DS3 subtend module should be installed in slot 9 of the subtending host 6100. The following figure illustrates the front panel of the DS3 subtending host module. See Table 9-6 for a description of the LEDs on the subtending host module.

Figure 8-5 DS3 Subtending Host Module

STATUS

ACTIVE

PORT 1

LOS

LOF

OCD

FERF

PORT 2

LOS

LOF

OCD

FERF

2X DS3 STM

16850

Caution Proper electrostatic discharge (ESD) protection is required at all times when handling modules. Installation and maintenance personnel should be properly grounded via ground straps to eliminate the risk of ESD damage when handling modules. Modules are subject to ESD damage upon removal from their anti-static shipment bag.

8.2.4 Cabling the System I/O Card to the DS3 Subtend Card

On the system I/O card are coaxial connections for DS3 cabling when a DS3 NI module is installed in the 6100 or when a 6100 is subtended. See the “Connecting the DS3 Subtending Card”section for more information on the NI modules. See Figure 7-9 for an illustration of the system I/O card. See Figure 8-2 for an illustration of the DS3 subtend card.

Cable the system I/O card to the DS3 subtending I/O card as shown in Figure 8-1. The transmit connector on the subtending I/O card cables to the receive connector on the subtended system I/O card, and vice versa.

Cisco recommends that ferrite beads be added to the coaxial cables used to cable the DS3 subtend card to the system I/O card to reduce the radiation/EMI susceptibility to high frequency noise between 30 and 200 MHz.

Cisco 6100 Set Up and Installation Manual 8-7