10
Canoga Perkins
1.3 2201 Rack Chassis
The 2201 Rack Chassis is designed to accommodate up to ten 2200 series modems.
It offers a variety of features, including local audible/visible and remote power failure alarms, op-
tional redundant power supply, and the ability to allow modem removal from the chassis without
powering down the entire system. Refer to the 2201 Rack Chassis / 2200R Redundant Modem
Card User Manual for more details.
1.4 2202 Modem Shelf
The 2202 Modem Shelf accommodates one or two standalone 2200-series modems. It is de-
signed to fit easily into a 19-inch equipment rack. The modems can be secured side-by-side in the
shelf. Refer to the 2202 Modem Shelf User Manual for more details.
1.5 2200R Redundant Modem Card Set
A redundant board set, consisting of two 2270 Modems and a 2200R Modem Card, uses three
slots of the 2201 Rack Chassis. It enables a user to incorporate a fully redundant fiber optic link
with 2270 Modems. The combination of the three boards provides redundant operation for data
rates up to 20 Mbps. Redundancy is not available for standalone models.
The 2200R provides the redundancy controller and signal switch for a redundant board set. The
2200R is equipped with keyed-ribbon cables and a modem interface (RPB) extender for easy
installation. Refer to the 2201 Rack Chassis / 2200R Redundant Modem Card User Manual for
more details.
1.6 Fiber Optic Versions
Three fiber optic versions provide solutions to virtually any fiber-optic plant, including 50/125 or
62.5/125 multimode and 8-10/125 single mode. Table 1-B summarizes the three fiber-optic
versions.
Table 1-B. Guaranteed Loss Budgets
Fiber Size
Optics Option
8/10
50
62.5
Min. Launch
SM
MM
MM
Power dBm
850 nm LED
N/A
2
6
-14
1310 nm LP Laser
10
10
10
-8
1310 nm HP Laser
15
15
15
-6
[Typical loss budgets are 2 dB higher]
N/A = Not Applicable