A-1
APPENDIX A
SPECIFICATION
HDSL LOOP INTERFACE
Line Rate: 11/- 32ppm
Line Code:
2B1Q
Line Type: unconditional twisted pair
Line Impedance: 135 Ohm
Transmit Line: 13.5 +/- 0.5dB
Range: 3.7Km for 26AWG
4.5Km for 24AWG
Bit Error Rate: 1x10E7,or Better
Connect: Rj-48C
NETWORK INTERFACE
Line Rate: 2.0/- 32ppm
Line Code: HDB3
Line Impedance: 75 Ohm for Coaxial Cable
120 Ohm for Twisted Pair
Frame Format: Framed G.704 and Unframed G.703
Connect: RJ-48C or BNC
DTE Interface: V.35, V.36/RS-449, RS-530, X.21/V.11
(
Cable Connector
)
Connector
:
SCSI
CLOCK OPTION
Clock Source: DTE1, Loop, Internal, E1
USER INTERFACE
Configuration: Use LCD Display and Keyboard Control
Alarm: Use Eight LED and LCD for alarm
LED Indicator: PWR, Loop1, Loop2, ALM, TST, SYN, AIS,
YEL
Diagnostics: LL, RL, DL, DTE Loop back
BERT Build in QRSS