Grass Valley VM 3000 System Controllers v.7.4 - Manual (Page 752)

Glossary−4
DVS − (Philips) Digital Video Systems. Successor to BTS . Now part of Grass Valley.
EBU − European Broadcasting Union. Internet address: http://www.ebu.ch/.
ES 400 − A term used in Thomson technical publications to denote the original asynchronous (non−reclocking)
version of the Venus digital audio switcher matrix board and associated components.
ES 401 − A term used in Thomson technical publications to denote the new AES11 synchronous/asynchronous
version of the Venus digital audio switcher matrix board and its associated components.
ES 3000 ESnet Interface Circuit Card − Ethernet board used in PC compatible computers. No longer available.
ESbus − nickname for EBU/SMPTE RS−422 bus protocol for remote control of television production equipment
using a full−duplex four−wire, asynchronous serial, 38.4 kbits/s digital channel. Connectors are 9−pin D. In-
corporates ANSI−SMPTE 207M and Recommended Practice 113. The Jupiter Serial bus is designed to be
compatible with ESbus; however, the serial data cable supplied by Thomson uses only 5 conductors. (In Jupi-
ter systems, “ESbus” usually refers to VTR control.)
ESbus Routing Switcher Protocol − used for control of a routing switcher with a third−party computer operat-
ing according to the proposed ESBUS routing switcher dialect. Also referred to as ESCONTROL protocol. Uses
logical input and output numbers to identify crosspoints.
ESbus Tributary protocol − (a.k.a. “ESTR” and “ES−trib”). Full tributary ESBus automation protocol, com-
pliant with SMPTE EG 29−1993, and all associated normative references. The protocol supports all standard
bit rates from 300 to 115.2 kBPS. Flow control is an advantage with this protocol.
EScontrol − control of a “remote” (serial control) routing switcher using proposed ESBUS ROUTING SWITCHER PRO -
TOCOL . Also referred to as “ESbus Router” protocol.
ESnet − nickname for EBU/SMPTE proposed protocol for remote control of television production equipment
based on THIN NET .
ESphysical − (a k a “ESP”). Used for control of a routing switcher with a third−party computer operating accord-
ing to the proposed ESBUS ROUTING SWITCHER PROTOCOL . Uses physical input and output numbers to identify
crosspoints.
ESswitch protocol − (a.k.a. “ESW”). Protocol used for Jupiter control of a routing switcher by a third−party com-
puter. It is described in Thomson document “ESswitch Serial Routing Switcher Control Protocol, Enhanced
Version.” This is a simplified version of the
ESBUS ROUTING SWITCHER PROTOCOL . This protocol operates in a
“pre−selected” mode, and no polling or flow control is implemented.
Ethernet − a high speed (10−100 Mbit/s) LAN technology that evolved into the IEEE 802.3 LAN standard. Uses a
relatively heavy 10.3 mm (0.4 inch) diameter, 50−ohm coaxial cable.
exclusion − lockout of selected inputs from selected outputs. Example: lockout of a test signal from bus leading to
transmitter.
extended party line − see PARTY LINE .