4 Channel E1/T1 over Ethernet or IP


  • PacketBand -TDM-4 supplies clock-locked clear channel or structured E1/T1 circuits over Ethernet, IP or MPLS networks.  It supports up to four E1/T1 and can be used in pairs or with other members of the Packetband range. 
  •  Multi-standard TDM pseudowire support: CESoPSN, SATOP, TDM over IP
  •  Highly accurate and stable clock recovery
  •  G.823/4 Synchronization levels
  •  Up to 4 E1/T1 interfaces
  •  Five 10/100/1000Mbps RJ45 interfaces
  •  Two 100/1000Mbps SFP interfaces
  •  Support for Jumbo Packets up to 9,600 bytes on Ethernet ports
  •  Port based VLAN, 802.1Q VLAN including Q-in-Q


Spec Text
Clock Recovery

Capable of exceeding G.823/4 Synchronous Interface requirements (subject to network performance

Ethernet Interfaces

5 x 10/100/1000BaseT RJ45
2 x 100/1000 Dual speed SFP slots

Local Managment Port

Auto-sensing to 115kbps;  Also remote access via IP network

IP & MAC Address

MAC address per port, IP address, subnet mask and default gateway. Support for DHCP


Width: 11.5” (292mm);  Depth: 7.87” (200mm);  Height: 1.73” (44mm)

TDM Port (T1)

4 Ports
User switchable E1/T1; RJ45 connector
100 Ohm
Unframed 1.544Mbps;  Framed 1.536Mbps CCS
ESF or D4 selectable; B8ZS or AMI selectable
Transparent to user signalling

TDM Port (E1)

4 ports
 User switchable E1/T1
 RJ45 connector
 120 Ohm
 75 Ohm user-selectable via convertor cable
 G.703 unstructured; • G.704 channelized
 ITU G.706
 Selectable CRC4/non-CRC4 HDB3
 Transparent to user signalling


Operating temperature -20˚C to +65˚C ;  Humidity 10-90% non-condensing

Regulatory Compliance

• FCC Class A; CE Mark
• MET Mark (North American safety)
• EN60950-1:2006+A1:2010+A12:2011;• EN55022:2010;• EN55024:2010

  • EC EN60950-1:2002
  • ACA TS001:1997
  • ACS/NZ60950:2000
  • AS/NZS3260:1993
  • IEC950



1 Year

Ordering Information

Order Code Description
NE-PB-PLUS-TDM-4-AC Quad T1/E1 CESoPSN unit; 5 x 10/100/1000BaseT; 2 x 100/1000 SFP; AC Power
NE-PB-PLUS-TDM-4-DC Quad T1/E1 CESoPSN unit; 5 x 10/100/1000BaseT ;2 x 100/1000 SFP ; DC Power

More Information