Specifications

X723-300151 1-16 Issue 2
With the front panel removed the chassis provides for the mounting of up
to 17 printed circuit boards. The extreme two left hand positions are for
system control cards. These are marked S<SYS (Standby) and
CON>M (Main).
All input/output connections to the channel cards are made via connectors
on the rear of the unit. These connectors are designed to be optionally
fitted with a universal I/O adaptor (DT280) or DIN 41612 connectors (See
Section 2.2.6).
Up to 15 channel cards may be fitted in the positions marked P1, P2, P3A
to P3G and P4A to P4F. The rear of the unit provides for the fitting of
modules on the lower half of the chassis by removing blank panels. Four
positions are dedicated for the use of fibre optic line driver modules.
Front and rear views of the equipment are shown in Figures 1-3 and 1-4
respectively.
Power is supplied to the chassis via a flying lead and this connects to the
3000 3RU power shelf mounted either above or below the 3200 chassis. A
terminal block is fitted to this panel for the connection of an external
ringing supply (See Section 2.2.9). Two connectors are mounted on the top
right hand rear of the unit. The top connector, a 9 pin D-type, is used for
V.28 Network Management (See Section 2.2.7). The lower connector, a 37
pin D-type, is used for Alarm inputs Control outputs and Alarm relay
contacts (See Section 2.2.4).
1.4 Specifications
1.4.1 Common Equipment
Complies with the relevant sections of:
CCITT G.703, G.704, G.706, G.732, G.736, G.823 (Blue Book).
BS6527 1988 Class A ) (Emissions)
EN55022 ) " "
IEC801 Part 2 Level 3 ESD (8kV)
IEC801 Part 3 Level 3 narrow-band susceptibility (10V/m)
IEC801 Part 2 Level 2 electrical fast transients/bursts (1KVAC Power,
0.5kVDC Power Signal and Control)
Note: I/O adaptors DT280 plus I/O blanking panels must be used for
EMC compliance.