Installation guide

Making External Connections to Cisco 4000 Series Routers 4-87
Network Connection Considerations
The CE1/PRI network processor module, shown in Figure 4-43, provides a controller for
transmitting and receiving data bidirectionally at the E1 rate of 2.048 Mbps. For wide-area
networking, the CE1/PRI module can function as a concentrator for a remote site.
Following are the E1 specifications:
• Transmission bit rate: 2.048 Mbps ± 50 ppm
• Output port specifications: see G.703 / Section 6.3
(International Telecommunication Union-Telecommunication Standardization Sector
specification)
• Input port specifications: see G.703 / Section 6.3 (ITU-T specification)
• Jitter attenuation starting at 6 Hz, which meets or exceeds G.823 for E1
Figure 4-43 CE1/PRI Network Processor Module
H3154
cE1/ PRI
LOOPBACK LOCAL ALARM REMOTE ALARM
DB-15
female