|
|
This chapter describes the three configurations for the Cisco 6100 Series system.
In addition to the above configurations, you can subtend an MC to three levels, all connected through one host MC to the ATM backbone. Subtending is supported in both Direct Connect and DOH configurations.
For information on rack requirements, see "Planning for a Cisco 6100 Series System."
This section describes a Direct Connect with a PSC configuration, which includes the following:
![]() | Warning Systems using a Cisco 6100 chassis must connect to the network through a PSC to provide the secondary lightning protection required by NEBS. |
For installation procedures for a Direct Connect with a PSC configuration, refer to the Cisco 6100 Series Direct Connect Installation Guide.
Figure 2-1 shows the components for a Direct Connect with a PSC configuration when you are using a Cisco 6130. This configuration can be used with CAP (ATUC-2-CAP-DIR-3 version) or DMT-2 ATU-C modules.

If you are installing more than one Cisco 6130 in a Direct Connect with a PSC configuration, install a fan tray under each Cisco 6130.
Figure 2-2 shows the components for a Direct Connect with a PSC configuration when you are using a Cisco 6100. This configuration can only be used with CAP ATU-C modules (ATUC-2-CAP-DIR-2 or ATUC-2-CAP-DIR-3 version).

If you are installing more than one Cisco 6100 in a Direct Connect with a PSC configuration, you will need to have 1 rack unit (RU) of space between the first PSC and the second MC. See Figure 2-3 for a sample configuration.

![]() | Caution Do not mix CAP and DMT-2 ATU-C modules. Use all CAP modules in both the MC and PSC or use all DMT modules in both the MC and PSC. Mixing modules can cause unpredictable system behavior. |
Table 2-1 and Table 2-2 describe each module slot assignment for the chassis configuration depicted in Figure 2-1.
| Module Slot | Module Assignment |
|---|---|
1 to 8 | CAP ATU-C or DMT-2 ATU-C modules only1 |
9 | DS3 STM2 (if applicable) |
10 | NI3 module |
11 | |
12 | SC5 module |
13 to 20 | CAP ATU-C or DMT-2 ATU-C modules only1 |
21 to 28 | CAP ATU-C or DMT-2 ATU-C modules only1 |
29 to 30 | Filler faceplates |
31 to 38 | CAP ATU-C or DMT-2 ATU-C modules only1 |
| Module Slot | Module Assignment |
|---|---|
1 to 10 | |
11 | |
12 | Screwed-down faceplate |
13 to 22 | CAP1 or DMT2 POTS modules only |
| 1If you are using CAP ATU-C modules in the MC, use CAP POTS modules in the PSC. 2If you are using DMT-2 ATU-C modules in the MC, use DMT POTS modules in the PSC. |
This section describes a Direct Connect without a PSC configuration, which includes the following:
For installation procedures for a Direct Connect without a PSC configuration, refer to the Cisco 6100 Series Direct Connect Installation Guide.
Figure 2-4 shows the components for a Direct Connect without a PSC configuration which is designed for a dedicated one-to-one configuration.

If you are installing more than one MC in a Direct Connect without a PSC configuration, install a fan tray under each MC.
![]() | Caution Do not mix DMT-2 ATU-C and STU-C modules in the MC. Mixing modules can cause unpredictable system behavior. |
Table 2-3 describes each module slot assignment for the MC depicted in Figure 2-4.
| Module Slot | Module Assignment |
|---|---|
1 to 8 | CAP ATU-C1, DMT-2 ATU-C, or STU-C modules only |
9 | DS3 STM (if applicable) |
10 | NI module |
11 | |
12 | SC module |
13 to 20 | CAP ATU-C, DMT-2 ATU-C, or STU-C modules only |
21 to 28 | CAP ATU-C, DMT-2 ATU-C, or STU-C modules only |
29 to 30 | Filler faceplates |
31 to 38 | DMT-2 ATU-C or STU-C modules only |
| 1The CAP ATU-C module that can be used in this configuration is the ATUC-2-CAP-DIR-3 version. |
This section describes a DOH configuration, which includes the following:
![]() | Warning Systems using a Cisco 6100 chassis must connect to the network through a PSC to provide the secondary lightning protection required by NEBS. |
You can use a combination of an MC, LCC, and PSC to provide the highest subscriber concentration. For maximum subscription in a 7-foot rack, one MC can support
For installation procedures for a DOH configuration, refer to the Cisco 6100 Set Up and Installation Manual.
Figure 2-5 shows the components for a DOH configuration.

Table 2-4 through Table 2-6 describe each module slot assignment for the chassis configuration shown in Figure 2-5.
| Module Slot | Module Assignment |
|---|---|
1 to 8 | CAP ATU-C modules only |
9 | DS3 STM (if applicable) |
10 | NI module |
11 | |
12 | SC module |
13 to 20 | CAP ATU-C modules only |
21 to 28 | CAP ATU-C modules only |
29 to 30 | Filler faceplates |
31 to 38 | CAP ATU-C modules only |
| Module Slot | Module Assignment |
|---|---|
1 to 10 | LIMs only |
11 | LIM controller module |
12 | |
13 to 22 | LIMs only |
| Module Slot | Module Assignment |
|---|---|
1 to 10 | CAP POTS modules only |
11 | |
12 | Screwed-down faceplate |
13 to 22 | CAP POTS modules only |
Figure 2-6 shows a sample application of a five-to-one concentration for a DOH configuration of a Cisco 6100 Series system.

In this guide, the term subtending refers to the host MC, and subtended refers to the downstream MC in a subtended network.
Subtending
The subtending host MC is the one that is connected directly to the ATM switch. You can have more than one subtending host MC in your subtending tree. There is a subtending host at the top of the subtending tree. Each additional subtending host MC requires a DS3 STM installed in slot 9, as well as a DS3 NI module installed in slot 10.
You can subtend an MC to three levels and up to six MCs, all connecting through one subtending host MC to the ATM backbone (Figure 2-7). Subtending is supported in both Direct Connect and DOH configurations.

You can cable, install, and provision the subtended MCs in a
Figure 2-8 shows a subtending host MC and a subtended node MC with corresponding slot number assignments.

In Figure 2-8, the DS3 STM is installed in slot 9 of the subtending host MC. The NI module is located in slot 10. If you have
If the MC is configured for Direct Connect with a PSC, the slot assignments for the MC are the same as those shown in Table 2-1. If the MC is configured for Direct Connect without a PSC, the slot assignments for the MC are the same as those shown in Table 2-3. If the MC is configured for DOH, the slot assignments for the MC are the same as those shown in Table 2-4.
![]()
![]()
![]()
![]()
![]()
![]()
![]()
Posted: Tue Nov 16 13:28:39 PST 1999
Copyright 1989-1999©Cisco Systems Inc.