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CHAPTER 1: Specifications
1. Specifications
Hardware
Required — Cards can be installed only in MicroRacks (see
Section 4.1)
Cable Required — For modem-to-modem line: Two- or four-wire
unconditioned twisted-pair, 19 to 26 AWG (see
the Appendix), pinned as shown in Section 4.5
Compliance — FCC Part 15 Class A, DOC Class/MDC classe A
Interfaces — Serial:
ME758C models: EIA/TIA-561 (compatible with
EIA RS-232 and ITU-TSS [CCITT] V.24);
ME759C models: EIA RS-232/ITU-TSS V.24
Line: Two- or four-wire telco;
Internal: Card-edge for module↔MicroRack
interconnection
Protocol — Synchronous or asynchronous
Clock Source — Internal, external (from DTE) or received (from
other Card) (user-selectable)
Data Format — Word length (including start bit, data bits, stop bits,
and parity bit) must equal 8, 9, 10, or 11 bits (user-
selectable)
Flow Control — Transparent to all types of software (X-ON/X-OFF,
robust X-ON/X-OFF, etc.) flow control; can be set
to support hardware flow control
Operating Mode — Two-wire half-duplex or four-wire full- or half-
duplex (user-selectable)