User`s manual

LBI-39117
6
Telephone Lines
Compact CEC audio channels should employ high-
quality low-noise phone lines or equivalent microwave
circuits. All audio channels require 4-wire (duplex) circuits
except channels to 2-wire remote controlled conventional
stations.
The uplink/downlink phone lines to and from the
EDACS site should employ 4-wire 3002-conditioned phone
lines or equivalent microwave circuits. Lines of this type
guarantee low bit-error data transfer rates for the
uplink/downlink control data. See LBI-38938 for 3002 data
grade phone line specifications.
It is highly recommended that ±27-volt surge-protection
be added to the punch blocks on the EDACS site channels
and any tone controlled conventional channels to
conventional stations. However, ±27-volt clamp protection
cannot be employed on the transmit pair to a dc controlled
conventional station. This pair may have up to a 135 Vdc
potential when a dc control current is sent out from the CI
Board to the conventional station.
CEC MANAGER (MOM PC) AND
SYSTEM MANAGER CONNECTIONS
Both the CEC Manager computer and the System
Manager computer (optional) interface to the Compact CEC
via MOM Concentrator Card A4.
❏
Wire the CEC Manager to the MOM Concentrator
Card (A4 connector J2) in accordance with Figure
9. Upon wiring completion, power-up the CEC
Manager and start its application program as
described in the respective documentation
(LBI-39024, LBI-39124, etc.).
❏
If a System Manager is employed in the C3
Advantage dispatch system, wire it to the MOM
Concentrator Card (A4 connector J3) in accordance
with Figure 9. Upon wiring completion, if
necessary, power-up and start its application
program as described in the respective
documentation (LBI-38984, LBI-38703, etc.) and
configure the I/O port used for Compact CEC
interfacing in accordance with LBI-38703.
AUXILIARY I/O OPTION MSDE3U
❏
If auxiliary I/O option MSDE3U is included with
the Compact CEC equipment, refer to installation
information within LBI-38938 for specific
installation instructions.
C3 MAESTRO INSTALLATION
Refer to the C3 Maestro Console System maintenance
manual, LBI-39062 or LBI-39100 (sub-manual LBI-39055
or LBI-39101 respectively), for console installation details.
The appropriate manual is provided with the console
equipment package.
❏
The C3 Maestro console(s) should be wired to the
Compact CEC in accordance with the
interconnection information included in
LBI-39055/LBI-39101 and the punch block pin-out
diagrams shown in this manual (pages 26 and 27).
Control data connections are made at punch block
PB2 (see page 26) and audio connections are made
at PB3 (page 27).
NOTE
A co-located C3 Maestro console is interconnected
to the Compact CEC via 600-ohm audio and
RS-422 control data interconnections. Specifically,
the control data interconnections are made via J12
on the Data Concentrator Card (A2) at the
respective terminals on PB2.
If a remote console installation is required, refer to
LBI-39055/LBI-39101 and LBI-38868 for modem
and RS-232 interconnection details. RS-232
console control data interconnections must be made
via J13 at the Data Concentrator Card and the
respective punch block terminals. The Data
Concentrator Card (A2) and the punch block (PB2)
pin-out diagrams do not list console ("CRT")
RS-232 connections.
COMPACT CEC POWER-UP
PROCEDURE
This section describes the recommended Compact CEC
power-up procedure. It also gives details that can resolve
minor problems that may occur during the power-up
process.
❏
Power-up the Compact CEC as follows:
1. Inspect all cabling for proper interconnections,
particularly the ac power cables.
2. Verify all equipment is properly grounded.
3. Verify
both
power switches on the back of the
RPS unit are in the "
OFF
" position. The RPS
unit is located at the bottom of the cabinet.
NOTE