NEC PASOLINK, Training Course

Page: 9 / 110

ROI-S02775
GENERAL
1-7
Table 1-1 Performance Characteristics of IDU (Cont’d)
Analog service channel (ASC) signal interface
Frequency: 0.3 to 3.4 kHz
Impedance: 600 ohms
Digital service channel (DSC) signal interface
Bit rate: • 64 kbps (G703/V.11)
• 9.6 kbps (asynchronous)
Level: RS-232, RS-422 or RS-485 (9.6k)
Meet specifications of ITU-T G.703/V.11 (64k)
Wayside (WS) signal interface
Bit rate: 2.048 Mbps
Level: Meet specifications of ITU-T G.703
Dimensions
• 2 MB
x
2/2 MB
x
4/2 MB
x
8/
2 MB
x
16 (for 120 ohms interface)/
8 MB x 1/34 MB x 1 fixed bit rate
system/2 MB x 2/4/8 bit rate free
system/2 MB x 2/4/8/16 bit rate free
system for 120 ohms interface:
482 wide
×
44 high
×
240 deep (mm)
•
2 ΜΒ
x
16
fixed bit rate
(
for
75
ohms nterface
)
system/2 MB x 2/4/8/
16 bit rate free system for 75 ohms
interface:
482 wide
×
66 high
×
240 deep (mm)
Weight
• 2 MB x
2/2 ΜΒ × 4/2 ΜΒ × 8/
2 ΜΒ
x
16 (
for
120
ohms interface
)/
8 ΜΒ
x
1/34 ΜΒ
x
1
system: Approx. 4 kg (including all options)
•
2 ΜΒ
x
16 (
for
75
ohms interface
)
system: Approx. 5 kg (including all options)
Environmental temperature range
Operation: 0°C to +50°C
Storage:
−
30°C to +70°C