B-30
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix B Specifications
CESM-4T1/E1 Specification
CESM-4T1/E1 Specification
Note The CESM-4T1/E1 specification is th e s a m e a s th e F RSM - 4T 1/ 4E 1 specification except as shown
in the following sections.

Service Interface (T1/E1)

Maintenance/Servicability: Facility loopback using loop up/down per ANSI T1.408 and
ATT TR 62411 (T1), CCITT G.7xx (E1)
Facility loopback usin g management consol e
Internal problem isolation loopbacks
Hot pluggable
Card Size: 7.25 in. x 15 in.
Power: 48V DC, 30W
Safety: EN 60950 2nd edition (including EN 41003) UL 1950 2nd
edition
Compliance: T1: Accunet 62411 E1: G.703, G.823
ESD: IEC 1000-4-2
Synchronization: Transmitter is synchronized to t he s h elf ( S tr at um traceable)
Line Framing: None
Channel Configuration:
Number of CBR Interfaces: 4
Cell Delay Variation (CDV): Configurable by setting reassembly buffer depth to a
maximum of 250 ms e c. CDV = 1/2 buffer depth