Specifications

Installation and Operation Manual Chapter 1 Introduction
HS-RN MP-2100/2104 Ver. 12.6, MP-4100 Ver. 2.0 Functional Description 1-11
For completeness, Table 1-2 also lists rates at which rate adaptation is not
needed (56 and 64 kbps).
Table 1-2. Occupied Bandwidth versus Channel Rate
Channel Rate Occupied Bandwidth Number of Bits
0.6 kbps 16 kbps 2 (one-quarter timeslot)
1.2 kbps 16 kbps 2 (one-quarter timeslot)
2.4 kbps 16 kbps 2 (one-quarter timeslot)
4.8 kbps 16 kbps 2 (one-quarter timeslot)
7.2 kbps 16 kbps 2 (one-quarter timeslot)
9.6 kbps 16 kbps 2 (one-quarter timeslot)
14.4 kbps 32 kbps 4 (one-half timeslot)
19.2 kbps 32 kbps 4 (one-half timeslot)
28.8 kbps 64 kbps 8 (one timeslot)
38.4 kbps 64 kbps 8 (one timeslot)
56 kbps (SYNC mode only) 64 kbps 8 (one timeslot)
64 kbps (SYNC mode only) 64 kbps 8 (one timeslot)
Channel Interface
Channel Interface Functions
Each HS-RN module channel can be configured by the user for asynchronous or
synchronous operation. Each channel has a DCE RS-232 interface.
The channel interface provides the following functions:
• Conversion of data stream received from the link to the format needed by
the user’s equipment, and vice versa. This conversion depends on the
operation mode (synchronous/asynchronous; for the latter, it also depends
on the selected word format.
• Physical interfacing to the user’s equipment, including handling of RS-232
interface signals.
Asynchronous Mode
The data rates supported by both HS-RN models in the asynchronous mode are
0.6, 1.2, 2.4, 4.8, 9.6, 19.2, and 38.4 kbps. The HDLC model additionally features
the data rates of 7.2, 14.4 and 28.8 kbps.
In the asynchronous mode, the user can specify the structure of the word format
to be processed by each channel (this structure must be identical to that used by
the user's equipment).
The available options are as follows:
• Number of data bits: 5, 6, 7, or 8.