ERM-MUX/Plus 4U, 10 I/O Slot Data, Ethernet, Voice E1 Managed Multiplexer
The ERM-Mux/plus is a 4U 19(23)" 14 slot rack type E1 Time Division Multiplexer for Fractional E1 network access which is designed for non-stop operation.There are 10 slots available for hot-swappable ERM-Mux/plus-I/O cards. Two slots are provided for Mux-E1 cards, which may be configured as four separate E1links or for redundant 1+1 operation of the E1 lines, safe guarding against expensive network down time. Two slots are also available for CPU cards, with the second CPU card acting as a hot standby in case of primary card failure. Each Mux-E1 card may be linked to another ERM-Mux/plus Rack to provide a point-to-point variety of datacom, Ethernet & voice over E1 network services. The ERM-Mux/plus optionally accommodates up to two separate power supplies, which may derive power from AC (110/220) or DC (-48V) power sources. When two power supplies are installed, the modules provide complete power redundancy and are hot swappable even during the E1 cards' transmission.
The ERM-Mux/plus provides all interface connections on the front panel. BNC and RJ-45 are used for E1 Line interface connections, RJ-45 connections are used for all voice (FXO, FXS, E&M), for 10/100 Ethernet Bridge and G.703-64K co-directional/contra-directional / center. Optional cable adapters are used to convert the DB-62F DCE ports of the I/O cards to 6xRS-232, HP68F DCE port of I/O card to 4x V.35, RS-232, RS-530, RS-449, RS-422 and X.21 or 5x X.50 channels.
Features:
- CPU redundancy (1+1)
- E1 redundancy (1+1 ) and E1 card redundancy
- Power redundancy (1+1) [2AC, 2DC, AC+DC]
- DCE hot swappable card types
4ch V.35 (nx64K)
4ch G.703 64K co-directional /contra-directional / center mode
2ch Ethernet bridge
6ch RS232
6ch FXS voice
6ch FXO voice
6ch E&M voice - Drop & Insert function
- Console, NMP,SNMP, management
1+1 Redundant - The ERM-MUX/PLUS supports complete redundant functions for the electrical input service, the power module cards, CPU card and E1 card. The E1 backup provides 1+1 modes. All of these cards are capable of automatic switchover in case of failure. The system has complete warning and diagnostic functions for stable and reliable operation.
Network Management - The ERM-MUX/PLUS supports SNMP (Under development) and/or NMP GUI network management with local PC or via a dedicated timeslot from the E1 line. The NMP GUI can manage more ERM-MUX/PLUS equipment via the E1 network in-line or in nested structures. A console terminal mode is supported as well. When SNMP management mode is available and selected, remote Telnet and HTTP embedded web server are also available for management.
Cascade - RS-485 interface is used for cascading expansion rack, and are provided by RJ-45 x 2 connectors. DB62 connector for connecting backplane data to expansion rack.
Power Redundancy - Power supply options for 110V AC, 220V AC or -48V DC, ensure maximum flexibility for central office installations. This equipment complies fully with all ITU-T standards for E1 transmissions. The modules are hot-swappable, capable of automatic switch over in case of module failure, stable, and reliable.
Performance and BERT test - System supports performance monitoring and BERT test through NMP or Terminal console according RFC 1406 recommendation. CRC-4 and BPV monitoring: CURR ES / UAS , LONG ES / UAS. Loopback test and BERT test: display Rx error amounts, Error counts and Bit-error-rate. Test patterns: 2e9-1, 2e11-1 and 2e15-1. Error Insertions and rates: Single, 10e-1, 10e-2, 10e-3, 10e-4, 10e-5, 10e-6, 10e-7.
Specifications:
Connectors: Console port (RJ45, RS232C); WAN port RJ45 Jack (2-wire, 4-wire)
Physical Specifications:
Dimensions: 350 x 438 x 176mm (W x D x H)
Weight: 8kg (chassis+dual power+8 I/O cards) 450g per card
Power Characteristics: AC : AC 90 ~250VAC; DC : DC -48VDC
Environmental Specifications:
Operating 0°C to 60°C
Storage 0°C to 70°C
Relative humidity 0% to 90% non-condensing
Predicted MTBF : 65,000 hrs (25°C)
Certification: CE
