CONNECTING A DPG
Configurations with up to 8 APMs and up to 4 DPGs
0311385 Issue : April 1999
2-7
Description of the links between the different modules
(when using an MMI-8 box)
(1) M/S cable (14-19S / 14-19S)
Used to connect the APM modules together. A plug with pin A wired to S, and J wired
to K (M/S terminator) needs to be connected to any unused M/S MMI-8 connector on
the MMI-8 box.
The TB signal on pins G and H is a logic OR of the TB signals from all the DPGs
connected.
(2) MMI-8 ACCB cable between MMI-8 and auxiliary line via ACCB box
(12-3S / banana plugs)
MMI-8
A, B TB connections from DPGs to AUX line
(A is wired to the red banana plug and B to the black one).
(3) APM BLASTER MMI-8 cable (16-26S / 12-10S)
MMI-8 BLASTER
C, D READY from DPGs to master APM via MMI-8. R, S
This signal is a logic “AND” of all connected DPGs, used to tell
the SN388 that VE432 is ready (used in normal mode only).
A, B FO from master APM (not used with VE432). A, B
G, H READY_IN from APM to DPG (not used). G, H
(4) DPG RECORDER MMI-8 cable between DPG and MMI-8 (14-19S / 12-14S)
RECORDER MMI-8
A, B CLOCK (from 17.920 MHz MMI-8 oscillator) A, B
all APMs and DPGs use the same clock from MMI_8 oscillator.
F, G READY from DPG to master APM via MMI-8 box F, G
(see APM BLASTER cable, C, D).
K, L TB from DPG
n
to AUX
n
(used in slip-sweep mode) and to master APM K, L
BLASTER plug (used in normal mode).
M, N FO from master APM (not used with VE432, this signal is sent by APM M, N
via the LAN in normal and slip-sweep modes).
P, R READY_IN from master APM to DPG (not used). P, R
The system will run in slip-sweep mode when the Slip-sweep option is enabled in the
OPERATION window, with the Continuous mode selected.
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