Section 360-880-202
17
10.
SPECIFICATIONS
10.1
Electrical
Parameter
Specification
Carrier Mode
Pulse Code Modulation (PCM) DS1
1.544MB/S Framing Format
T1 interface complies with the T1.403 standard:
SF format: Yellow Alarm, Line loopback, Payload loopback
ESF format: Yellow Alarm, Facility data link, Line loopback,
Payload loopback
Line code (software selectable)
B8ZS or AMI
Transmit Line Build Out (Software selectable)
Short Haul:
0
−
110 ft.
(pre-equalization)
110
−
220 ft.
(CSU application)
220
−
330 ft.
330
−
440 ft.
440
−
550 ft.
550
−
660 ft.
Long Haul (Attenuation): 0dB
(Cable matching)
7.5dB
15dB
22.5dB
Input/output impedances
100 Ohms
Transmission Rate
1.544 MB/s
±
32 ppm
ICB timing
Timing from T1-S
T1 CONNECTOR (rear panel.)
RJ-48C
T1 monitor bantam jacks (On front panel only)
Use to monitor the secondary T1 signal (both transmit and
receive) without interference.
Alarm interface and contacts
The system provides visual and audible alarm contact clo-
sure when the channel bank is in alarm or there is a loss of
power. When the ACO (Audible Alarm Cut Off) is activated,
the audible alarm contacts return to open circuit.
ACO switch (front panel)
Use to silence the audible alarm contacts
Data port test pattern generator and detector
OCU, CSU, DSU, latch loopback code for 64, 56KB/s.
OCU, CSU, DSU non-latching loopback for 56 KB/s and
subrates
V.54 loopback code for 56/64KxN
Voice port test and 0 dBm calibration tone (soft-
ware selectable on a per-channel basis)
DTMF port test sequence or 1 KHz 0 dBmO level calibra-
tion tone
Power supply input voltage range
−
42V to
−
56V
Power supply current
.063 amp (normal), .038 amp (bypass)
Heat dissipation
3.15 watts (normal), 1.94 watts (bypass)
10.2
Physical
