Cisco XR 12000 Series - Manual (Page 60)

2-30
Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide
OL-17438-04
Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters
1-Port Channelized STM-1/OC-3 SPA Overview
Note The 1000BASE-ZX SFP modules provide an optical power budget of 21.5 dB. You should measure your
cable plant with an optical loss test set to verify that the optical loss of the cable plant (including
connectors and splices) is less than or equal to 21.5 dB. The optical loss measurement must be performed
with a 1550-nm light source.
1-Port Channelized STM-1/OC-3 SPA Overview
The following sections describe the 1-Port Channelized STM-1/OC-3 SPA:
• 1-Port Channelized STM-1/OC-3 SPA LEDs, page 2-30
• 1-Port Channelized STM-1/OC-3 SPA Interface Specifications, page 2-31
• 1-Port Channelized STM-1/OC-3 SPA Cables and Connectors, page 2-31
1-Port Channelized STM-1/OC-3 SPA LEDs
The 1-Port Channelized STM-1/OC-3 SPA has two types of LEDs: an A/L LED for each port and a
STATUS LED, as shown in
Figure 2-17 .
Figure 2-17 1-Port Channelized STM-1/OC-3 SPA Faceplate
SFP-GE-Z 1550 SMF 9/10 — 49.7 miles
(80 km)
SMF 2 8 — 62.1 miles
(100 km)
1. Multimode fiber (MMF) only.
2. Dispersion-shifted single-mode fiber-optic cable.
Table 2-27 SFP Module Port Cabling Specifications (continued)
SFP Modules
Wavelength
(nm)
Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz/km)
Maximum
Cable Distance
1 C/A (Carrier/Alarm) LED 3 STATUS LED
2 A/L (Active Loopback) LED
SPA-1XCHSTM1/OC3
ST
ATUS
138847
0
C/A
A/L
1
2
3