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DCHI installation for all systems
Page 89 of 188
ISDN PRI Installation
Figure 24
QPC757 option and PRI/ISL high speed programming switch settings
QPC757C DCHI
1234
on
Jumpers for port J1,
the async port. The
port is always the
lower, even number.
Port address switch.
See table below.
Place jumper plugs in
sockets as shown. This
selects the DTE and RS-
422 options required for
the D-channel.
A
A
AA
AA
RS-232
DCE
HS (RS-422)
DTE
A
A
AA
AA
RS-232
DCE
HS (RS-422)
DTE
RS-232
DCE
A
AA
HS (RS-422)
DTE
RS-232
DCE
A
AA
HS (RS-422)
DTE
jumper
on
| | | |
Meridian 1 I/O port selection:
Port address switch settings
Switch 1
Off
Off
Off
Off
On
On
On
On
Switch 2
Off
Off
On
On
Off
Off
On
On
Switch 3
Off
On
Off
On
Off
On
Off
On
Port number
J1
J2
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Switch 4
Off
Off
Off
Off
Off
Off
Off
Off
Jumpers for port J2, the
D-channel port. The
port is always the
higher, odd number.
553-1384