Verilink 2010 (34-00204) Product Manual - Manual (Page 4)

General 1-1 2010 CSU
General
1.0 Introduction
The TxPORT 2010 ESF CSU provides an economical solu-
tion for interfacing a metallic T1 facility to customer pro-
vided T1 equipment. The 2010 supports ANSI T1.403 or
AT&T 54016 ESF CSU requirements.
The 2010 may be ordered as a stand-alone unit or as a mod-
ular card for mounting in a chassis. When the 2010 is paired
with a TxPORT 2000 CSU at the far end, the 2010 can be
managed over the TxPORT EM8000 element manager net-
work.
For applications requiring the use of alarm contacts, the unit
may be ordered with an ACO and alarm card. The 2010 has
primary and secondary surge protection on both the network
and DTE side (meeting UL 1459 requirements).
The unit provides ALBO circuitry on the network path and
DSX circuitry on the DTE receive paths. The network
ALBO supports a receive range of +1 dB to -30 dB. The
DTE supports DSX1 signal ranges up to 655 feet.
The unit also provides LBO circuitry on both network and
DTE. The network transmit LBO is user selectable (0, -7.5,
-15, and -22.5 dB). The DTE transmit LBO is user select-
able in four incremental ranges from 0 to 655 feet.
1.1 Specifications
Network Interface
Line Rate: 1.544 Mb/s (±50 bps)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Line Impedance: balanced 100
Ω
(±5%)
Input Signal: DS1, +1 to -30 dB (ALBO)
Output Signal: 3.0 V (±15%) base-peak into 100 ¾
Line Build Out: 0, -7.5, -15, and -22.5 dB attenuation
Line Protection: 1000 V lightning, fused input/output
Jitter Control: per TR62411 and T1.403
Pulse Density: per TR62411
TxPORT 2010 CSU
ACO SW
ACO
FRM
NET
MON
TO
DTE
TO
NET
MON
FRM
DTE
NET ERROR
7
6
5
4
3
2
1
S1
NRM LOOP
7
6
5
4
3
2
1
S2
FAR ERROR
DTE ERROR
LOOP
A B
2010
ESF CSU
T R A N S P O R T
®