8.PRODUCT SPECIFICATIONS

Product specifications are detailed in Table 4.

Table 5. Total Access 3000 LTU Specifications

Loop Interface

 

Modulation Type

2B1Q

Mode

Full Duplex, Echo Canceling

Number of Pairs

Two

Bit Rate

1168 kbps per pair

Baud Rate

584K baud per pair

Service Range

2.7 km over 0.4 mm cable;* 4.7 km over 0.5 mm cable*

Loop Loss

27 dB maximum @ 150 kHz

Bridged Taps

2 Taps, 500 meters maximum each

Performance

Compliant with ETSI TS 135 101

HDSL Tx Signal Level

13.5 dBm

Input Impedance

135 Ω

Return Loss

20 dB (40 kHz to 200 kHz)

Network Interface

 

4-wire E1

2.048 Mbps CCITT G.703 and G.704 compatible

E1 Output Level

0 dB

Impedance

75 or 120 Ω

E1 Core Frame

Method 0, Method 1 (see Section 5)

E1 Line Code

AMI, HDB3

E1 Format

CCS, CAS, Unframed

E1 Error Checking

CRC4

Power

 

Total Power

-48 Vdc @ 10 W typical

E1 LTU Power Dissipation

<7 W maximum

E1 LTU -48 Vdc Current Drain

< .3 A maximum

Sealing Current

current limited at 10 mA

Span Power

-120 Vdc (internally generated) current limited at 60 mA (CE compliant)

Clock

 

Clock Sources

Internal, E1 Derived

Internal Clock Accuracy

+ 25 ppm (Stratum 4)

Tests

 

Diagnostics

Self-Test, Local Loopback (LTU), Remote Loopback (NTU)

Physical

 

Dimensions

6 in. (152.4 mm) high x 5/8 in. (15.9 mm) wide x 10 in. (254 mm) deep

Weight

Less than 1 lb.

Environment

Operating (Standard): -40°C to +70°C; Storage: -40°C to +85°C

Temperature

Safety

In conformance with EN41003 and EN60950, IEC 950

Overvoltage Protection

In conformance with CCITT K.20

EMC

In conformance with EN55022 and EN50082

Part Number

 

Total Access LTU

1182007L1

18

Section 61182007L1-5, Issue 1

61182007L1-5A

Page 18
Image 18
ADTRAN 3060 specifications Product Specifications, Total Access 3000 LTU Specifications