Cisco 1100 Series Hardware Installation Manual page 38

Install and Connect the Router
Ports and Cabling
Figure 22: C1100TG-1N32A - Async Bracket Installation
Figure 23: C1100TG-1N24P32A and C1100TGX-1N24P32A - Async Bracket Installation
1. Before connecting Async cables to the ports, mount Async bracket onto the front panel.
2. Align the the sides of the brackets to the Async port slots on the front panel.
Hardware Installation Guide for the Cisco 1100 Terminal Gateway
34