The TL604 provides 15 line card units and 1 power units which is described as following figure. Each line card could support 2 or 4 subscriber line service. General applications are as following diagram showing. The RS-232 connection is offered for TL604A NMS using only.
Specifications:
- Digital subscriber line:
- Line code: 2 BIQ complies with ANSI T1.601-1991
- Maximum Line resistance: 1300 ohms
- Line impedance: 135 ohms +/- 10%
- Line loss: 42dB@40KHz
- Voice transmission:
- Voice Encoding: PCM (Mu)-Law/A-Law optional complies with CCITT Rec. G711
- Compression: ADPCM complies with CCITT Rec. G721 (0+4 only)
- RT impedance: 600 ohms
- Insertion loss: 3 +/- 0.5dB
- Idle channel noise: 58dB; 3000Hz >53Hz
- Signal to distortion ratio: 0~-30dBm0 >33dB; -30~-40dBm0 >27dB
- Impulse noise: 12dB; 600~3400Hz >15dB
- Channel crosstalk Isolation: >65dB@1004Hz
- RT to customer equipment interface:
- RT loop current: >20mA
- RT On-Hook tip/ring voltage: 26VDC
- Ringing:
- Voltage: 65Vrms to 95Vrms
- Frequency: 20Hz to 25Hz
- Meter signal frequency: both 16KHz (12KHz option) and polarity reverse
- Power requirement:
- COT: -36~-72V DC; Maximum power consumption 28W
- RT: remote power fed via subscriber line; Maximum power consumption 4W
- Physical dimensions:
- COT: 177mm(H) x 434mm(W) x 334mm(D)
- RT: 345mm(H) x 214mm(W) x 53mm(D)
- Environmental conditions
- COT: Temperature 0 degree ~ +45 degree, Humidity 20%~80%
- RT: Temperature -20 degree ~ +60 degree, Humidity 5%~95%
Features:
- ISDN technology ensures high quality transmission
- Supports voice/data/facsimile transmission
- Remote power feed for the remote terminal - no local power or batteries required
- Payphone interface for 16/12KHz and/or Polarity reversal metering system
- Support a number of subscriber lines with single pair of wires from the Central office to the subscribers: 2, 4
Ordering information:
- Minimum Order: Negotiable
- FOB: Taiwan