Product Description

The 377 scaler is a single–width CAMAC module which provides 16 channels of 16 or 24 bit binary counters with RS422 compatible differential inputs. The 377 and 380 differ only with respect to the scaler bit size; 377 is 16 bits and the 380 is 24 bits. The scalers may be gated either by a TTL signal presented on a LEMO socket, or by an RS422 differential signal which accompanies the scaler signals. Signals are connected to the scaler inputs by a front panel mounted 37 way ’D’ type socket. Each scaler has an associated buffer register which stores data either on receipt of a front panel TTL ’latch’ pulse or a dataway generated latch command, or if the appropriate printed circuit link is set, on receipt of a dataway read command. The module is equipped with a full 16 bit LAM status, mask and request structure. Each LAM status bit is set when the corresponding scaler overflows.

Features

• Compact single–width CAMAC module with full command set decode.
• Supports 16 scalers of 16 or 24 bit binary each. RS422 differential inputs on single 37 way ’D’ type socket.
• Count rate 15MHz min, 100 ohms in series with 1000pf termination.
• Full LAM set and status on overflow with all 16 channels.
• LEMO front panel sockets for gate and latch TTL signals.
• Available as 377 16 bit or 380 24 bit binary scalers.