Chapter 1. Introduction
14
November 2001
User Data Channels
Interface Types -V.35, X.21, RS-530, RS-449, RS-232,
-G.703/64K Codirectional, NRZ/BNC,
-10Base-T Bridge, and 10/100Base-T Router
I/F Connectors
V.35 I/F
X.21 I/F
RS-530 I/F
RS-449 I/F
RS-232 I/F
G.703/64K I/F
NRZ Interface
Bridge I/F
Router I/F
34 pin, M-block Female
15 pin, D-type Female
25 pin, D-type Female
37 pin, D-type Male(adpt. cable on RS-530)
25 pin, D-type Female
15 pin, D-type Female
BNC Female (4)
RJ-45
RJ-45
Line Code NRZ (G.703/64K is Codirectional line code)
Data Rate n××56kbps or n××64kbps
where n equal 1 to 31 in CCS
and n equal 1 to 30 in CAS
Clock Modes
RECOVERY
Receive and transmit clock (recovered) to the
synchronous DTE
INT OSC Receive and transmit clock (internal
oscillator) to the synchronous DTE
DTE1
(Transparent)
Receive clock to the synchronous, and
transmit clock from the synchronous device
DTE2 Receive and transmit clock from the
synchronous DCE (from ETC and ERC pin )
DTE3 Receive and transmit clock from the
synchronous DCE (all from ETC pin).
Control Signals -CTS ON, or follows RTS
-DSR constantly ON, except during test loops
-DCD constantly ON, except during signal loss
Time slot
allocation
User defined
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