3-18
Cisco CRS-1 Carrier Routing System SIP and SPA Hardware Installation Guide
OL-17439-01
Chapter 3 Overview: Cisco CRS-1 Shared Port Adapters
8-Port OC-12c/STM-4 Multirate POS SPA Overview
OC-12 Module Connections
Table 3-9
shows the OC-12 specifications of the optics on the 8-Port OC-12c/STM-4 Multirate POS
SPA.
RX overload
OC-3 MM: –5 dBm
OC-3 SR: –8 dBm
OC-3 IR-1: –8 dBm
OC-3 LR-1: –10 dBm
OC-3 LR-2: –10 dBm
Maximum receiver power damage
OC-3 MM: +5 dBm
OC-3 SR: +5 dBm
OC-3 IR-1: +5 dBm
OC-3 LR-1: +5 dBm
OC-3 LR-2: +5 dBm
Table 3-8
OC-3 Specifications (continued)
Specification
Description
Table 3-9
OC-12 Specifications
Specification
Description
Wavelength
OC-12 MM: 1270 nm to 1380 nm
OC-12 SR: 1261 nm to 1360 nm
OC-12 IR-1: 1293 nm to 1334 nm
OC-12 LR-1: 1280 nm to 1335 nm
OC-12 LR-2: 1480 nm to 1580 nm
Cabling distance (maximum)
OC-12 MM: 0.5 km (0.3 miles)
OC-12 SR: 2 km (1.2 miles)
OC-12 IR-1: 15 km (9.3 miles)
OC-12 LR-1: 40 km (24.8 miles)
OC-12 LR-2: 80 km (49.7 miles)
Operating case temperature range
OC-12 MM: 23 to 185 degrees F (–5 to 85 degrees C)
OC-12 SR: 23 to 185 degrees F (–5 to 85 degrees C)
OC-12 IR-1: 23 to 185 degrees F (–5 to 85 degrees C)
OC-12 LR-1: 23 to 185 degrees F (–5 to 85 degrees C)
OC-12 LR-2: 23 to 185 degrees F (–5 to 85 degrees C)
TX power
OC-12 MM: –20 to –14 dBm
OC-12 SR: –15 to –8 dBm
OC-12 IR-1: –15 to –8 dBm
OC-12 LR-1: –3 to 2 dBm
OC-12 LR-2: –3 to 2 dBm
Receiver sensitivity (maximum)
OC-12 MM: –26 dB
OC-12 SR: –23 dBm
OC-12 IR-1: –28 dBm
OC-12 LR-1: –28 dBm
OC-12 LR-2: –28 dBm