Table 19-12 Relationship Between The Maximum Speed And Occupied Transmission Bandwidth Of Rs232 Interfaces; Table 19-13 Comparison On Metrics Of Rs485 And Rs422 Standards; Table 19-14 Fxs/Fxo Interface Pins Of The Opcom3500E-Multi - Raisecom iTN2100 Hardware Description

Raisecom
iTN2100 (P100R002) Hardware Description
Table 19-12 list the relationship between the maximum speed and occupied transmission
bandwidth of RS232 interfaces
Table 19-12 Relationship between the maximum speed and occupied transmission bandwidth of
RS232 interfaces
RS232 speed
9600 Kbit/s
19200 Kbit/s
130000 Kbit/s
Table 19-13 compares metrics of RS485 and RS422 standards.

Table 19-13 Comparison on metrics of RS485 and RS422 standards

Maximum transmission distance (m)
Maximum transmission speed (Mbit/s)
Maximum common-mode voltage (V)
Dropout voltage of differential output voltage
Internal resistance of sender (Ω)
Internal resistance of receiver (KΩ)
Differential voltage range of receiver (mV)
Interface pins
Table 19-14 describes FXS/FXO interface pins of the OPCOM3500E-MULTI. Each RJ45
outputs 4-way voice services.

Table 19-14 FXS/FXO interface pins of the OPCOM3500E-MULTI

Occupied transmission
bandwidth
64 Kbit/s
128 Kbit/s
2048 Kbit/s
Parameter
RJ45 RJ45 pin No.
1
2
3
4
5
Raisecom Technology Co., Ltd.
Number of
occupied timeslots
1
2
32
RS422
1200
10
-7 to +7
2–10
≥ 100
4
± 200
Line name
TIP1
RING1
TIP2
RING2
TIP3
19 Multi-service cards
Frame
structure
Framed
Framed
Transparently
transmission
RS485
1200
10
-7 to +7
1.5–5
≥ 60
12
± 200
Description
st
1 -way voice
nd
2 -way voice
rd
3 -way voice
214