ADTRAN 3060 - Manual (Page 18)

18 Section 61182007L1-5, Issue 1 61182007L1-5A
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
Temperature ....................................... Operating (Standard): -40
°C to +70°C; Storage: -40°C to +85°C
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
8. PRODUCT SPECIFICATIONS
Product specifications are detailed in Table 4.