Liberator D

Specifications

Technical Specification

Interfaces

Physical

PRI Interfaces
Two pairs of ports are Power-Failure Relay Protected
Typical driving distance – 500m
Switchable NT/TE with straight cables

E1
RJ45 120Ohm balanced
G.703 HDB3 encoded
ETSI-DSS1 (Euro-ISDN)
ETSI Q.931/921
ETSI 300-011 (Layer 1)
ETSI 300-125 (layer 2)
ETSI 300-102 (layer 3)
Approved to TBR4
Selectable CRC4 or non-CRC4 Framing

T1
RJ45 100Ohm balanced
ESF or D4 framing
B8Zs or AMI line coding
NI-2 North American National
DMS-100 and 5ESS switch variants
AT&T TR-62411 and ANSI T1.403
Robbed-Bit Signalling available soon. Call for details
Hong Kong variant available
RJ11 with Dry-contact Alarm Relay
Access password protected.
Asynchronous, 8 data,1 stop bit, no parity speed 19.2 to 115kbps

Link Ports Serial Control Port
RJ45 standard twisted-pair CAT5E cable
Typical driving distance 500m–1,500m per Link depending on data rate and cable
Supports data rates to 50Mbps full-duplex between the two units
Provides management access to all units with Ethernet card in PC

Dimensions (WxDxH): Metal chassis 292 x 200 x 44 mm
Optional 19” rack-mount kit
Weight 1.1Kg
Operating temperature 0-50 oC
Humidity 10-90% non-condensing

Power

Internal AC PSU
Standard IEC connector
95-250 VAC 15W
Auto-Sensing
Max consumption
0.13Amps RMS @230VAC
Optional internal DC PSU (replaces AC)
Telecomms Screw terminals
33 to 75VDC
Max consumption typically 0.35Amps

Approvals

Telecomms
TBR12/TBR13
TBR4:1995, 1997 Amendment
TIA/E1A-IS/968
TNA117
AS-ACIF-S006/S016
CS03 Canada
EMC
EN55022:1988
EN55024:1988
EN61000-3-2/3:1995
AS/NZS CISPR22:2000
Safety
IEC60950-1:2002
ACS/NZS60950:2000
AS/NZS3260:1993
ACA TS001:1997

Ordering Information

LIBD-1-T-1:
LIBD-1-E-1:
LIBD-2-T-1:
LIBD-2-E-1:
LIBD-3-T-1:
LIBD-3-E-1:
LIBD-4-T-1:
LIBD-4-E-1:
LIBD-5-T-1:
LIBD-5-E-1:
LIBD-6-T-1:
LIBD-6-E-1:
LIBD-7-T-1:
LIBD-7-E-1:
LIBD-8-T-1:
LIBD-8-E-1:
LIBD-9-T-1:
LIBD-9-E-1:
LIBD-10-T-1:
LIBD-10-E-1:

First 4-port T1 PRI switch element.
First 4-port T1E1 PRI switch element.
2 x 4-port T1 PRI switch element providing 8-port package.
2 x 4-port E1/T1 PRI switch element providing 8-port package.
3 x 4-port T1 PRI switch element providing 12-port package.
3 x 4-port E1/T1 PRI switch element providing 12-port package.
4 x 4-port T1 PRI switch element providing 16-port package.
4 x 4-port E1/T1 PRI switch element providing 16-port package.
5 x 4-port T1 PRI switch element providing 20-port package.
5 x 4-port E1/T1 PRI switch element providing 20-port package.
6 x 4-port T1 PRI switch element providing 24-port package.
6 x 4-port E1/T1 PRI switch element providing 24-port package.
7 x 4-port T1 PRI switch element providing 28-port package.
7 x 4-port E1/T1 PRI switch element providing 28-port package.
8 x 4-port T1 PRI switch element providing 32-port package.
8 x 4-port E1/T1 PRI switch element providing 32-port package.
9 x 4-port T1 PRI switch element providing 36-port package.
9 x 4-port E1/T1 PRI switch element providing 36-port package.
10t x 4-port T1 PRI switch element providing 40-port package.
10 x 4-port E1/T1 PRI switch element providing 40-port package.