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CTC Union ETU01C Manual de usuario Pagina 26

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The ETRM01 is a 2U 19(23)" concentrator rack for E1 and T1 Cross Rate Converters in central office installations. There are
20 slots available for hot swappable FTEC cards. An optional SNMP card can be installed into the first slot for configuration
and management, leaving 19 slots available for FTEC cards. The SNMP card provides both local control via an RS-232 serial
console port and remote IP management using Telnet, web GUI, SNMP protocol. Each E1 card may be linked to a remote
E1/T1 PABX or a stand-alone FTEC Unit. The ETRM01 accommodates an optional second hot swappable shared power
supply module which may derive power from AC (100-240) or DC (-48V) power sources. On the front panel of FTEC,
combinations of BNC and RJ-45 connectors are utilized for E1 and T1 Line interface connections.
ETRM01
2U 20-slot E1/T1 Cross Rate
Converter Rack
Features
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Support G.802 Annex B
Enables equipment to operate at T1 and E1 rates.
Converts between T1 and E1 data and signaling.
Configurable A-law/u-law and signaling conversion.
Transparent conversion at 64kbps timeslot level.
Controlled slip for buffer over/underflow.
The 24 timeslots of T1(Nx64) can be inserted into
E1(Nx64), 30/CAS or 31/CCS timeslots.
Local/remote loopback test capabilities on both
T1 and E1 interface.
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Complies with ITU-T G.703, G.704, G.823,
G.824 recommendations.
Function setting via internal DIP switch setting or
Console Port.
(When SNMP card installed) Timing selection:
Transparent timing,
T1/E1 recovery timing
Internal timing (1.544Mbps/2.048Mbps)
External timing (1.544Mbps/2.048Mbps)
Loopback timing
20-slot E1/T1 Cross-Rate Converter Rack overview
Chassis backplane consists of passive components
Support E1/T1 Cross-Rate Converter
NMC Card for ETRM01 E1/T1 Cross-Rate Converter Rack
1
2
3
Single or optional redundant power supplies
Hot swappable Cooling fans
Chassis cascade up to 10 with one management IP
Alarm relay
5
6
7
4
1
2
3
4
4
5
6
7
7
New
ETRM01
www.ctcu.com
5-20
PDH Series
5
5-20
E1/T1 Cross-Rate Converter Rack
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