December 2008 Page 22–5
Chapter 22. Sub-Rate Data (SRD-2/SRD-4) Module
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Table 22–3. SRD-2 Specifications.
Table 22–4. SRD-4 Specifications.
Table 22–5. SRD-4N Specifications.
Feature Specification
Catalog ID F020SRDMN-001 (SRD-2)
Interfaces Four (4) RS-232C
Handshaking RTS, CTS
Supported
Data Rate 0 to 9600 bps asynchronous
Indicators TX per channel
RX per channel
Module Status LED
Connectors Four (4) DB9 Female DCE
Feature Specification
Catalog ID F020SRDMN-002 (SRD-4)
Interfaces Two (2) RS-232 (sub-chan. A&B)
Two (2) RS-485 (sub-chan. C&D)
(One RS-232, RS-485 each DS0)
Handshaking RTS, CTS
Supported (232 only)
Data Rate 0 to 9600 bps asynchronous
Indicators TX per channel
RX per channel
Module Status LED
Connectors Two (2) DB9 Female (232) DCE
Terminal Block (485)
Table 22–2. SRD Data Signals.
FOCUS DCE/PIN# DTE/PIN#
TX TD/3
< TX/2
RX RD/2 > RX/3
RTS RTS/7 < RTS/4
CTS CTS/8 > CTS/5
Feature Specification
Catalog ID F020SRDMN-003 (SRD-4N)
Interfaces Two (2) RS-232 (sub-chan. A&B)
Two (2) RS-485 (sub-chan. C&D)
full duplex and DNP Support
Handshaking RTS, CTS
Data Rate 0 to 9600 bps asynchronous
Indicators TX per channel
RX per channel
Module Status LED
Connectors Two (2) DB9 Female (232) DCE
Terminal Block (485)
labeled ‘C’, (D unused)
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