Modem |
| Data
Rates |
Sync:4.8k,
9.6k, 19.2k, 38.4k, 56k, 64k, 72k, 112k, 128kbps.
Async:4.8k, 9.6k, 19.2k, 38.4kbps. |
|
|
| Line
Operation |
2
wire full duplex subscriber line up to 5.5Km (18Kft),
Complying ANSI T1.601 line sepecifications |
|
|
| Transmission |
Synchronous,
2B1Q coding with adaptive echo-cancellation and equalization |
|
|
| Receive
Sensitivity |
-42
dbm |
|
|
| Transmit
Level |
13.7
dbm |
|
|
| Line
Load Impedance |
135
, balanced |
|
|
| Synchronization |
Internal
clock, external clock from DTE, or extracted from
received signal |
|
|
| Flow
Control |
RTS/CTS,
DCD and Anti-Streaming with pro- grammable delay |
|
RTS/CTS,
DCD - 0 to 255
ms |
|
Anti-Streaming
- 0 to 255 sec |
|
|
| Diagnostics |
Seven
V.54 loopback test with internal 511 Bit Rate Pattern
(BERT) generator |
|
| DTE
Interface |
|
NTU
12 8 SA |
V.24,
V.35, G.703, X.21 |
|
NTU
12 8 RIM |
V.24,
V.35, G.703, X.21 |
|
|
| Control |
|
|
NTU128SA |
2
x 16 character LCD with push buttons front panel |
|
|
| Indicators |
|
|
NTU
128SA |
2
x 16 character LCD with push buttons Front panel |
|
NTU
128RC |
12
LEDs |
Control Module |
| Operation |
Management
of all 16 modems in a chelf |
|
|
| Monitoring |
Last
50 events covering loss of sync; power supply failure;
slot empty; Error Seconds and anti-streaming . |
|
|
| Alarm
Interface |
NC/NO
alarm relay |
|
|
| Control
Panel |
2
x 16 LCD, 4 buttons, 4 LEDs |
Power Supply |
| Power
Supply |
Shelf-mount
module with redundant option |
|
|
| Input
Voltage |
-36
to -72 VDC and auto range 90-260 VAC |
|
|
| Indicator |
1
LED |
Voice Port |
|
| NTU128SA |
|
|
Type |
FXS
and FXO Interface, 2 wire Loop start |
|
On-Hook
voltage |
-48VDC |
|
Ring |
50
Vrms. |
|
Loop
Current |
24
ma with constant current Feeding |
|
|
| NTU128RC |
|
|
Type |
FXO
Interface, 2 wire Loop start |
|
Indicator |
"voice"
indicate Ring, ON/OFF Hook status |
|
Dialing |
DTMF
and pulse |
|
Meet
ITU-T |
G.712
Transmission Requirements |
Shelf |
| Slots |
16
NTU-128RM, 1 NTU-128CM, 2 power supply |
| DTE
Connector |
DB-25 |
| Line
Connector |
RJ-11
or Terminal Block |
| Other
Connector |
Terminal
blocks for Alarm; Chassis Ground; DC input, socket for
AC input |
|
|
| Dimensions
|
48.0(w)
x 17.7(h) x 40.0(d) cm |
Contact Taicom
