Specifications, Specifications -5 – Verilink QPRI 2921 (880-503143-001) Product Manual User Manual
Page 15

QPRI 2921 Dual-Port ISDN Primary Rate Interface
Verilink QPRI 2921
1-5
Figure 1-3 CIM Configurations
NOTE: Equipment Ports 1 and 2 require adapter cables to properly
interface with native connectors.
Specifications
Table 1-1
QPRI General Specifications
Number of Ports
4 per module)
Transmission (Line) Rate
1.544 Mbit/s, RX:
±
200 ppm; TX:
±
32
Line Code
B8ZS, AMI
Framing Format
ESF, SF
CPE Impedance
100
Ω
±
5% at 772 KHz test
Transmission Level
0 dB
Input Level
CIMs: 3.0 V
±
0.3 V base-to-peak, attenuated by 0 to 27.5 dB
Output Level
3.0 V
±
0.3 V base-to-peak or
DS1 into 100
Ω
at 0 dB LBO
INPUT
RELAY
NO COM NC
DS-1
PORT 2
ALARM
EXT TIMING
CI
M
20
64
31
1
-10
14
67
-0
0
1
PORT 1
PORT 4
PORT 3
INPUT
RELAY
NO COM NC
DSX-1
PORT 2
ALARM
EXT TIMING
CIM
206
8
31
1-
10
1
5
0
0
-0
0
1
PORT 1
PORT 4
PORT 3
INPUT
RELAY
NO COM NC
NET 2
ALARM
EXT TIMING
CIM
29
00
3
31
1-
10
15
0
1
-0
0
1
NET 1
CPE CPE
1
DSX-1
DS-1
CIM 2064, Four Net Ports (DS1)
CIM 2068, Four Equipment Ports (DSX-1)
CIM 29003, Two Equipment Ports, Two Net Ports (DSX-1, DS1)