User manual

CHAPTER 1： MODEM INTRODUCTION
•
Far-end Echo Coverage : Maximum 1.2 seconds.
•
Scrambler & Descrambler : Comply with ITU-T V.34,V.32bis,V.32,V.22bis, V.22
•
Data And Control Signal : Output Voltage
±
(6 ~ 12)V
(ITU-T V.28) Input Voltage
±
(3 ~ 25)V
Output Impedance
≧
330
Ω
Input Impedance 3000 ~ 7000
Ω
• Tx Clock Source : Internal/External/Loopback
Freq. Tolerance : ± 0.01 %
Duty Cycle : 50
±
1 %
•
Test Features : V.54/V.52 , LAL/DL/RDL
Test Patterns - 511
•
Power Requirement : 90 ~ 265 VAC Auto Range, 47 ~ 63 Hz
DC Power Input : -36 ~ -72 VDC option(Chassis type)
•
Operating Temperature : 0
°
C ~ 50
°
C
Storage Temperature : -25
°
C ~ 70
°
C
Relative Humidity : 95 % (non-condensing)
•
Physical Size :
Stand alone
Ö
W - 180mm, H - 48mm, D - 262mm, Weight 0.9kg
Rack mount card
Ö
W - 220mm, H - 26mm, D - 328mm, Weight 0.6kg
Rack mount shelf
Ö
W - 19", H - 6RU, D - 380mm, Weight 8kg
Full shelf Equipped
Ö
Weight 16kg
•
DTE Interface: EIA RS-232C, CCITT V.24/V.28
Pin V.24 DESCRIPTION Source
1 101 (PG) Protective Ground
—
2 103 (TXD) Transmit Data DTE
3 104 (RXD) Receive Data MODEM
4 105 (RTS) Request To Send DTE
5 106 (CTS) Clear To Send MODEM
6 107 (DSR) Data Set Ready MODEM
7 102 (SG) Signal Ground
—
8 109 (DCD) Data Carrier Detect MODEM
9 +12 VDC MODEM
10 -12 VDC MODEM
15 114 (TXC)Transmit Clock MODEM
17 115 (RXC) Receive Clock MODEM
18 141 (AL) Local Analog Loopback DTE
20 108 (DTR) Data Terminal Ready DTE
21 140 (RDL) Remote Digital Loopback DTE
22 125 (RING) Ring Detect MODEM
24 113 (XTC) External Clock DTE
25 142 (TST) Test Mode MODEM
6