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Technical specifications, 4 technical specifications – RAD Data comm ASM-20 User Manual

Page 21

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ASM-20 Installation and Operation Manual

Chapter 1 Introduction

Technical Specifications

1-7

1.4 Technical

Specifications

Transmission Line

Type

Unloaded twisted pair 19 to 26 AWG

Range

See

Table 1-1

Level

Strap-selectable to 0 dBm or -6 dBm

Transmit Impedance

150Ω or LOW (strap selectable)

Receive Impedance

150Ω or HIGH (strap selectable)

Return Loss

Greater than 15 dB

Carrier

Controlled by RTS or constantly ON

Modulation

Conditional diphase European Std. D1

Digital Interface

Type

V.24/RS-232 via 25-pin D-type, (up to 64 kbps
only), female connector
V.35 via 34-pin female connector
X.21 via 15-pin D-type female connector
RS-530 (RS-422) via 25-pin D-type female
connector
V.36 (RS-449) via 37-pin female connector using
mechanical cable adapter provided with the
product
G.703 Codirectional (64 kbps) via terminal block

or RJ-45
Built-in Ethernet bridge via RJ-45 connector or
BNC

Data Rates - selectable

Sync:
19.2, 32, 48, 56, 64, 72, 96, 112, 128, 144, 192,
256 kbps
Async:
19.2, 28.8, 38.4, 57.6, 115.2 kbps

RTS/CTS Delay

Switch selectable to:
- 0 ms
- 9 ms
- 70 ms

Length of Word

8, 9, 10, 11

Stop Bits

1, 1.5, 2